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2508 vulnerabilities
CVE-2026-10702 (GCVE-0-2026-10702)
Vulnerability from cvelistv5 – Published: 2026-06-02 17:16 – Updated: 2026-06-02 17:16
VLAI
Title
JIT miscompilation in the JavaScript Engine: JIT component
Summary
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3.
Severity
No CVSS data available.
Assigner
References
Credits
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CVE-2026-10701 (GCVE-0-2026-10701)
Vulnerability from cvelistv5 – Published: 2026-06-02 17:15 – Updated: 2026-06-02 17:15
VLAI
Title
Incorrect boundary conditions in the Graphics: Text component
Summary
Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 151.0.3.
Severity
No CVSS data available.
Assigner
References
Credits
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CVE-2026-9309 (GCVE-0-2026-9309)
Vulnerability from cvelistv5 – Published: 2026-06-01 11:24 – Updated: 2026-06-01 13:51
VLAI
Title
Arbitrary JavaScript execution in internal pages via Reader View JSON-LD injection
Summary
Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
151.2 , ≤ *
(rpm)
|
Credits
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CVE-2026-9308 (GCVE-0-2026-9308)
Vulnerability from cvelistv5 – Published: 2026-06-01 11:24 – Updated: 2026-06-01 13:52
VLAI
Title
Arbitrary JavaScript execution in Reader View due to wrong HTML replacement order
Summary
Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was fixed in Firefox for iOS 151.2.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
151.2 , ≤ *
(rpm)
|
Credits
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CVE-2026-9078 (GCVE-0-2026-9078)
Vulnerability from cvelistv5 – Published: 2026-05-25 14:05 – Updated: 2026-05-26 20:09
VLAI
Title
Firefox iOS RTL Domain Rendering Issue in Link Preview
Summary
Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
151.1 , ≤ *
(rpm)
|
Credits
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CVE-2026-8706 (GCVE-0-2026-8706)
Vulnerability from cvelistv5 – Published: 2026-05-19 14:27 – Updated: 2026-05-19 17:12
VLAI
Title
Sensitive user data could be leaked to other applications through Reader mode
Summary
Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox for iOS 151.0.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox for iOS |
Unaffected:
151.0 , ≤ *
(rpm)
|
Credits
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CVE-2026-8975 (GCVE-0-2026-8975)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-26 17:47
VLAI
Title
Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151
Summary
Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150. 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 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.36 , ≤ 115.*
(rpm)
Unaffected: 140.11 , ≤ 140.* (rpm) Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8974 (GCVE-0-2026-8974)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-26 17:47
VLAI
Title
Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151
Summary
Memory safety bugs present in Firefox ESR 140.10 and Firefox 150. 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 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
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:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8973 (GCVE-0-2026-8973)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-26 17:47
VLAI
Title
Memory safety bugs fixed in Firefox 151
Summary
Memory safety bugs present in Firefox 150. 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 151 and Thunderbird 151.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
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:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8972 (GCVE-0-2026-8972)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-20 15:38
VLAI
Title
Privilege escalation in the WebRTC: Audio/Video component
Summary
Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8971 (GCVE-0-2026-8971)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-19 17:10
VLAI
Title
Same-origin policy bypass in the Networking: JAR component
Summary
Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8970 (GCVE-0-2026-8970)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-20 15:38
VLAI
Title
Privilege escalation in the Security component
Summary
Privilege escalation in the Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8969 (GCVE-0-2026-8969)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-19 17:10
VLAI
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8968 (GCVE-0-2026-8968)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-19 17:10
VLAI
Title
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component
Summary
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8967 (GCVE-0-2026-8967)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-20 15:46
VLAI
Title
Information disclosure in the Graphics: WebGPU component
Summary
Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8966 (GCVE-0-2026-8966)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-20 15:46
VLAI
Title
Information disclosure in the IP Protection component
Summary
Information disclosure in the IP Protection component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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"confidentialityImpact": "HIGH",
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"privilegesRequired": "NONE",
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CVE-2026-8965 (GCVE-0-2026-8965)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-20 15:46
VLAI
Title
Information disclosure in the DOM: Security component
Summary
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8964 (GCVE-0-2026-8964)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-19 17:10
VLAI
Title
Spoofing issue in the Popup Blocker component
Summary
Spoofing issue in the Popup Blocker component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8963 (GCVE-0-2026-8963)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:30 – Updated: 2026-05-19 17:10
VLAI
Title
Spoofing issue in the Web Speech component
Summary
Spoofing issue in the Web Speech component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8962 (GCVE-0-2026-8962)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-20 15:46
VLAI
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8961 (GCVE-0-2026-8961)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-20 15:46
VLAI
Title
Spoofing issue in the Form Autofill component
Summary
Spoofing issue in the Form Autofill component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8960 (GCVE-0-2026-8960)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-19 17:10
VLAI
Title
Spoofing issue in WebExtensions
Summary
Spoofing issue in WebExtensions. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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CVE-2026-8959 (GCVE-0-2026-8959)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-19 17:10
VLAI
Title
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component
Summary
Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8958 (GCVE-0-2026-8958)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-19 17:10
VLAI
Title
Information disclosure, sandbox escape in the Security: Process Sandboxing component
Summary
Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8957 (GCVE-0-2026-8957)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-20 15:37
VLAI
Title
Privilege escalation in the Enterprise Policies component
Summary
Privilege escalation in the Enterprise Policies component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8956 (GCVE-0-2026-8956)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-19 17:10
VLAI
Title
Integer overflow in the Networking: JAR component
Summary
Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
{
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"adp": [
{
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CVE-2026-8955 (GCVE-0-2026-8955)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-20 15:37
VLAI
Title
Privilege escalation in the DOM: Workers component
Summary
Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8954 (GCVE-0-2026-8954)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-19 17:10
VLAI
Title
Incorrect boundary conditions, integer overflow in the Audio/Video component
Summary
Incorrect boundary conditions, integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
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:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8953 (GCVE-0-2026-8953)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-19 17:10
VLAI
Title
Sandbox escape due to use-after-free in the Disability Access APIs component
Summary
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.36 , ≤ 115.*
(rpm)
Unaffected: 140.11 , ≤ 140.* (rpm) Unaffected: 151 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.11 , ≤ 140.*
(rpm)
Unaffected: 151 , ≤ * (rpm) |
Credits
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CVE-2026-8952 (GCVE-0-2026-8952)
Vulnerability from cvelistv5 – Published: 2026-05-19 12:29 – Updated: 2026-05-20 15:37
VLAI
Title
Privilege escalation in the Application Update component
Summary
Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
151 , ≤ *
(rpm)
|
|
| Mozilla | Thunderbird |
Unaffected:
151 , ≤ *
(rpm)
|
Credits
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},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-50/"
}
],
"title": "Privilege escalation in the Application Update component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-8952",
"datePublished": "2026-05-19T12:29:45.268Z",
"dateReserved": "2026-05-19T12:29:44.424Z",
"dateUpdated": "2026-05-20T15:37:12.685Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}