Action not permitted
Modal body text goes here.
Modal Title
Modal Body
alsa-2026:6188
Vulnerability from osv_almalinux
Published
2026-03-30 00:00
Modified
2026-04-02 08:18
Summary
Important: thunderbird security update
Details
Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
- firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-4701)
- firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 (CVE-2026-4721)
- firefox: thunderbird: Privilege escalation in the Netmonitor component (CVE-2026-4717)
- firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-4688)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4706)
- firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-4695)
- firefox: thunderbird: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (CVE-2026-4689)
- firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-4698)
- firefox: thunderbird: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component (CVE-2026-4716)
- firefox: thunderbird: Race condition, use-after-free in the Graphics: WebRender component (CVE-2026-4684)
- firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component (CVE-2026-4705)
- firefox: thunderbird: Uninitialized memory in the Graphics: Canvas2D component (CVE-2026-4715)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4685)
- firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component (CVE-2026-4714)
- firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-4709)
- firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component (CVE-2026-4710)
- firefox: thunderbird: Information disclosure in the Widget: Cocoa component (CVE-2026-4712)
- firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-4697)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-4713)
- firefox: thunderbird: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (CVE-2026-4690)
- firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-4711)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4686)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-4708)
- firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-4691)
- firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-4699)
- firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-4696)
- firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component (CVE-2026-4693)
- firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component (CVE-2026-4718)
- firefox: thunderbird: JIT miscompilation in the JavaScript Engine component (CVE-2026-4702)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics: Text component (CVE-2026-4719)
- firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics component (CVE-2026-4694)
- firefox: thunderbird: Sandbox escape in the Responsive Design Mode component (CVE-2026-4692)
- firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 (CVE-2026-4720)
- firefox: thunderbird: Mitigation bypass in the Networking: HTTP component (CVE-2026-4700)
- firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4707)
- firefox: thunderbird: Denial-of-service in the WebRTC: Signaling component (CVE-2026-4704)
- firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component (CVE-2026-4687)
- thunderbird: Out of bounds read in IMAP parsing (CVE-2026-4371)
- thunderbird: Spoofing issue in Thunderbird (CVE-2026-3889)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:9",
"name": "thunderbird"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.9.0-1.el9_7.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Thunderbird is a standalone mail and newsgroup client. \n\nSecurity Fix(es): \n\n * firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-4701)\n * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 (CVE-2026-4721)\n * firefox: thunderbird: Privilege escalation in the Netmonitor component (CVE-2026-4717)\n * firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-4688)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4706)\n * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-4695)\n * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (CVE-2026-4689)\n * firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-4698)\n * firefox: thunderbird: Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component (CVE-2026-4716)\n * firefox: thunderbird: Race condition, use-after-free in the Graphics: WebRender component (CVE-2026-4684)\n * firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component (CVE-2026-4705)\n * firefox: thunderbird: Uninitialized memory in the Graphics: Canvas2D component (CVE-2026-4715)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4685)\n * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component (CVE-2026-4714)\n * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-4709)\n * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video component (CVE-2026-4710)\n * firefox: thunderbird: Information disclosure in the Widget: Cocoa component (CVE-2026-4712)\n * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Web Codecs component (CVE-2026-4697)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-4713)\n * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (CVE-2026-4690)\n * firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-4711)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4686)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-4708)\n * firefox: thunderbird: Use-after-free in the CSS Parsing and Computation component (CVE-2026-4691)\n * firefox: thunderbird: Incorrect boundary conditions in the Layout: Text and Fonts component (CVE-2026-4699)\n * firefox: thunderbird: Use-after-free in the Layout: Text and Fonts component (CVE-2026-4696)\n * firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: Playback component (CVE-2026-4693)\n * firefox: thunderbird: Undefined behavior in the WebRTC: Signaling component (CVE-2026-4718)\n * firefox: thunderbird: JIT miscompilation in the JavaScript Engine component (CVE-2026-4702)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Text component (CVE-2026-4719)\n * firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics component (CVE-2026-4694)\n * firefox: thunderbird: Sandbox escape in the Responsive Design Mode component (CVE-2026-4692)\n * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149 (CVE-2026-4720)\n * firefox: thunderbird: Mitigation bypass in the Networking: HTTP component (CVE-2026-4700)\n * firefox: thunderbird: Incorrect boundary conditions in the Graphics: Canvas2D component (CVE-2026-4707)\n * firefox: thunderbird: Denial-of-service in the WebRTC: Signaling component (CVE-2026-4704)\n * firefox: thunderbird: Sandbox escape due to incorrect boundary conditions in the Telemetry component (CVE-2026-4687)\n * thunderbird: Out of bounds read in IMAP parsing (CVE-2026-4371)\n * thunderbird: Spoofing issue in Thunderbird (CVE-2026-3889)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:6188",
"modified": "2026-04-02T08:18:50Z",
"published": "2026-03-30T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:6188"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-3889"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4371"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4684"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4685"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4686"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4687"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4688"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4689"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4690"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4691"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4692"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4693"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4694"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4695"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4696"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4697"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4698"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4699"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4700"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4701"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4702"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4704"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4705"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4706"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4707"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4708"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4709"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4710"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4711"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4712"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4713"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4714"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4715"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4716"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4717"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4718"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4719"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4720"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-4721"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450710"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450711"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450712"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450713"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450714"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450715"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450718"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450719"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450720"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450721"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450722"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450723"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450724"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450725"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450726"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450727"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450728"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450729"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450730"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450732"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450733"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450734"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450735"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450738"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450739"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450740"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450741"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450742"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450744"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450746"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450747"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450748"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450751"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450752"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450755"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450756"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2450757"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2451001"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2451006"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/9/ALSA-2026-6188.html"
}
],
"related": [
"CVE-2026-4701",
"CVE-2026-4721",
"CVE-2026-4717",
"CVE-2026-4688",
"CVE-2026-4706",
"CVE-2026-4695",
"CVE-2026-4689",
"CVE-2026-4698",
"CVE-2026-4716",
"CVE-2026-4684",
"CVE-2026-4705",
"CVE-2026-4715",
"CVE-2026-4685",
"CVE-2026-4714",
"CVE-2026-4709",
"CVE-2026-4710",
"CVE-2026-4712",
"CVE-2026-4697",
"CVE-2026-4713",
"CVE-2026-4690",
"CVE-2026-4711",
"CVE-2026-4686",
"CVE-2026-4708",
"CVE-2026-4691",
"CVE-2026-4699",
"CVE-2026-4696",
"CVE-2026-4693",
"CVE-2026-4718",
"CVE-2026-4702",
"CVE-2026-4719",
"CVE-2026-4694",
"CVE-2026-4692",
"CVE-2026-4720",
"CVE-2026-4700",
"CVE-2026-4707",
"CVE-2026-4704",
"CVE-2026-4687",
"CVE-2026-4371",
"CVE-2026-3889"
],
"summary": "Important: thunderbird security update"
}
CVE-2026-4713 (GCVE-0-2026-4713)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Sajeeb Lohani
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4713",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T16:13:05.618870Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T16:13:37.918Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sajeeb Lohani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:50:54.808Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2018113"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Incorrect boundary conditions in the Graphics component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4713",
"datePublished": "2026-03-24T12:30:37.800Z",
"dateReserved": "2026-03-23T23:22:27.865Z",
"dateUpdated": "2026-04-13T13:50:54.808Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4714 (GCVE-0-2026-4714)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Audio/Video component
Summary
Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Sajeeb Lohani
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4714",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T16:10:07.067081Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T16:10:36.488Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sajeeb Lohani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:50:56.854Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2018126"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Incorrect boundary conditions in the Audio/Video component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4714",
"datePublished": "2026-03-24T12:30:38.311Z",
"dateReserved": "2026-03-23T23:22:29.882Z",
"dateUpdated": "2026-04-13T13:50:56.854Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4715 (GCVE-0-2026-4715)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI
EPSS
VEX
Title
Uninitialized memory in the Graphics: Canvas2D component
Summary
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Jun Yang
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4715",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T19:34:24.461807Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-908",
"description": "CWE-908 Use of Uninitialized Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T19:49:39.101Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Jun Yang"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:50:59.102Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2018405"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Uninitialized memory in the Graphics: Canvas2D component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4715",
"datePublished": "2026-03-24T12:30:38.831Z",
"dateReserved": "2026-03-23T23:22:31.885Z",
"dateUpdated": "2026-04-13T13:50:59.102Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4716 (GCVE-0-2026-4716)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
VEX
Title
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component
Summary
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Pwn2addr
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4716",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T19:24:14.555574Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-908",
"description": "CWE-908 Use of Uninitialized Resource",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T19:49:33.955Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Pwn2addr"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:51:01.318Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2018592"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4716",
"datePublished": "2026-03-24T12:30:39.453Z",
"dateReserved": "2026-03-23T23:22:33.703Z",
"dateUpdated": "2026-04-13T13:51:01.318Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4717 (GCVE-0-2026-4717)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
VEX
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Satoki Tsuji
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4717",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T03:56:09.242900Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T13:11:11.515Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Satoki Tsuji"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:51:03.533Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2021695"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Privilege escalation in the Netmonitor component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4717",
"datePublished": "2026-03-24T12:30:40.175Z",
"dateReserved": "2026-03-23T23:22:35.771Z",
"dateUpdated": "2026-04-13T13:51:03.533Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4718 (GCVE-0-2026-4718)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
VEX
Title
Undefined behavior in the WebRTC: Signaling component
Summary
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4718",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T19:11:07.322179Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-758",
"description": "CWE-758 Reliance on Undefined, Unspecified, or Implementation-Defined Behavior",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T19:49:21.495Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:51:12.032Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014864"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Undefined behavior in the WebRTC: Signaling component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4718",
"datePublished": "2026-03-24T12:30:42.279Z",
"dateReserved": "2026-03-23T23:22:37.804Z",
"dateUpdated": "2026-04-13T13:51:12.032Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4719 (GCVE-0-2026-4719)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI
EPSS
VEX
Title
Incorrect boundary conditions in the Graphics: Text component
Summary
Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Sajeeb Lohani
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4719",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T19:08:12.648684Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T19:49:16.511Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sajeeb Lohani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:51:15.420Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2016367"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Incorrect boundary conditions in the Graphics: Text component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4719",
"datePublished": "2026-03-24T12:30:42.762Z",
"dateReserved": "2026-03-23T23:22:39.782Z",
"dateUpdated": "2026-04-13T13:51:15.420Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4720 (GCVE-0-2026-4720)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-07-15 00:49
VLAI
EPSS
VEX
Title
Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
33 references
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://access.redhat.com/security/cve/CVE-2026-4720 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2450751 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:8427 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7843 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8315 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:5931 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6342 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:5932 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6917 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7840 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8285 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7858 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8850 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7842 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8289 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7838 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8288 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7839 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8286 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7841 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8287 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7845 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8290 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7837 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8284 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:5930 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6188 | vendor-advisoryx_refsource_REDHAT |
Impacted products
22 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:140.9.0-1.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:140.9.0-1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:140.9.0-1.el7_9 , < *
(rpm)
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:140.9.0-1.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected:
0:140.9.0-1.el8_2 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.2 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:140.9.0-1.el8_4 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:140.9.0-1.el8_4 , < *
(rpm)
cpe:/a:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:140.9.0-1.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
0:140.9.0-1.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_tus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:140.9.0-1.el8_8 , < *
(rpm)
cpe:/a:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el8_8 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:140.9.0-1.el9_7 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el9_0 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:140.9.0-1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:140.9.0-1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
Credits
Christian Holler, Gabriele Svelto, Tom Schuster and the Mozilla Fuzzing Team
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4720",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T03:56:10.337285Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T13:10:13.381Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_els:7"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el7_9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.2"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.2"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus_long_life:8.4"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus_long_life:8.4"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_7",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_7",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "rhel10/firefox-flatpak",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "rhel10/thunderbird-flatpak",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unknown",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-24T12:30:43.271Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation\u0027s Security Advisory describes the following issue:\nMemory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-15T00:49:09.776Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-4720"
},
{
"name": "RHBZ#2450751",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450751"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4720.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8427"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7843"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8315"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5931"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:6342"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5932"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:6917"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7840"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8285"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7858"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8850"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7842"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8289"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7838"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8288"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7839"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8286"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7841"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8287"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7845"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8290"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7837"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8284"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5930"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:6188"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:8427: Red Hat Enterprise Linux Server (v. 7 ELS)"
},
{
"lang": "en",
"value": "RHSA-2026:7843: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:8315: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:5931: Red Hat Enterprise Linux AppStream (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:6342: Red Hat Enterprise Linux AppStream (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:5932: Red Hat Enterprise Linux AppStream (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:6917: Red Hat Enterprise Linux AppStream (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:7840: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
},
{
"lang": "en",
"value": "RHSA-2026:8285: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
},
{
"lang": "en",
"value": "RHSA-2026:7858: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
},
{
"lang": "en",
"value": "RHSA-2026:8850: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
},
{
"lang": "en",
"value": "RHSA-2026:7842: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
},
{
"lang": "en",
"value": "RHSA-2026:8289: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
},
{
"lang": "en",
"value": "RHSA-2026:7838: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:8288: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:7839: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:8286: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:7841: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:8287: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:7845: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:8290: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:7837: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:8284: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:5930: Red Hat Enterprise Linux AppStream (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:6188: Red Hat Enterprise Linux AppStream (v. 9)"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-24T13:03:30.400Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-24T12:30:43.271Z",
"value": "Made public."
}
],
"title": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Christian Holler, Gabriele Svelto, Tom Schuster and the Mozilla Fuzzing Team"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:51:17.655Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"name": "Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149",
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2004652%2C2019372%2C2021922%2C2022567%2C2022733"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4720",
"datePublished": "2026-03-24T12:30:43.271Z",
"dateReserved": "2026-03-23T23:22:41.974Z",
"dateUpdated": "2026-07-15T00:49:09.776Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4721 (GCVE-0-2026-4721)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-07-15 00:49
VLAI
EPSS
VEX
Title
Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity
9.8 (Critical)
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
34 references
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://www.mozilla.org/security/advisories/mfsa2… | |
| https://access.redhat.com/security/cve/CVE-2026-4721 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2450711 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:8427 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7843 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8315 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:5931 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6342 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:5932 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6917 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7840 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8285 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7858 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8850 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7842 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8289 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7838 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8288 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7839 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8286 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7841 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8287 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7845 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8290 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7837 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8284 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:5930 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6188 | vendor-advisoryx_refsource_REDHAT |
Impacted products
22 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:140.9.0-1.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:140.9.0-1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:140.9.0-1.el7_9 , < *
(rpm)
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:140.9.0-1.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected:
0:140.9.0-1.el8_2 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.2 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:140.9.0-1.el8_4 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:140.9.0-1.el8_4 , < *
(rpm)
cpe:/a:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:140.9.0-1.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
0:140.9.0-1.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_tus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el8_6 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:140.9.0-1.el8_8 , < *
(rpm)
cpe:/a:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el8_8 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:140.9.0-1.el9_7 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el9_0 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:140.9.0-1.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:140.9.0-1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:140.9.0-1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
Credits
Christian Holler, Timothy Nikkel, Tom Schuster and the Mozilla Fuzzing Team
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4721",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-25T03:56:11.360250Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-25T13:09:23.842Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el10_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_els:7"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el7_9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.2"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.2"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus_long_life:8.4"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus_long_life:8.4"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_7",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_7",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.4"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:140.9.0-1.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "rhel10/firefox-flatpak",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "affected",
"packageName": "rhel10/thunderbird-flatpak",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "firefox",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unknown",
"packageName": "thunderbird",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-24T12:30:44.312Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Firefox and Thunderbird. The Mozilla Foundation\u0027s Security Advisory describes the following issue:\nMemory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-825",
"description": "Expired Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-15T00:49:07.514Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-4721"
},
{
"name": "RHBZ#2450711",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450711"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4721.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8427"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7843"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8315"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5931"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:6342"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5932"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:6917"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7840"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8285"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7858"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8850"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7842"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8289"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7838"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8288"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7839"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8286"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7841"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8287"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7845"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8290"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7837"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8284"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5930"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:6188"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:8427: Red Hat Enterprise Linux Server (v. 7 ELS)"
},
{
"lang": "en",
"value": "RHSA-2026:7843: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:8315: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:5931: Red Hat Enterprise Linux AppStream (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:6342: Red Hat Enterprise Linux AppStream (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:5932: Red Hat Enterprise Linux AppStream (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:6917: Red Hat Enterprise Linux AppStream (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:7840: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
},
{
"lang": "en",
"value": "RHSA-2026:8285: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
},
{
"lang": "en",
"value": "RHSA-2026:7858: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
},
{
"lang": "en",
"value": "RHSA-2026:8850: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
},
{
"lang": "en",
"value": "RHSA-2026:7842: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
},
{
"lang": "en",
"value": "RHSA-2026:8289: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
},
{
"lang": "en",
"value": "RHSA-2026:7838: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:8288: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
},
{
"lang": "en",
"value": "RHSA-2026:7839: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:8286: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
},
{
"lang": "en",
"value": "RHSA-2026:7841: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:8287: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
},
{
"lang": "en",
"value": "RHSA-2026:7845: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:8290: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:7837: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:8284: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:5930: Red Hat Enterprise Linux AppStream (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:6188: Red Hat Enterprise Linux AppStream (v. 9)"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-24T13:01:21.825Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-24T12:30:44.312Z",
"value": "Made public."
}
],
"title": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149",
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.34",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Christian Holler, Timothy Nikkel, Tom Schuster and the Mozilla Fuzzing Team"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:51:21.639Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"name": "Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149",
"url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2013762%2C2015291%2C2016591%2C2016661%2C2016664%2C2017303%2C2017894%2C2018090%2C2018196%2C2018379%2C2019112%2C2022090%2C2022243%2C2022351%2C2022478%2C2022676"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-21/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4721",
"datePublished": "2026-03-24T12:30:44.312Z",
"dateReserved": "2026-03-23T23:22:42.445Z",
"dateUpdated": "2026-07-15T00:49:07.514Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…