Common Weakness Enumeration
CWE-122
AllowedHeap-based Buffer Overflow
Abstraction: Variant · Status: Draft
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
5380 vulnerabilities reference this CWE, most recent first.
CVE-2026-103242 (GCVE-0-2026-103242)
Vulnerability from cvelistv5 – Published: 2026-09-30 11:50 – Updated: 2026-09-30 11:50
VLAI
EPSS
VEX
Title
Rpm: heap-based buffer overflow write in hex2binv() via a mistyped rpmtag_filesignatures header tag
Summary
A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte buffer and then write the tag's attacker-controlled, hex-decoded content — of attacker-chosen length — past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.
Severity
7.1 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-103242 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2543866 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| 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
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
Date Public
2026-09-30 11:00
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CVE-2026-97152 (GCVE-0-2026-97152)
Vulnerability from cvelistv5 – Published: 2026-09-24 03:17 – Updated: 2026-09-24 12:47
VLAI
EPSS
VEX
Summary
Nanomsg versions 0.5-beta through 1.x before 1.2.3 has a remotely exploitable buffer overflow in the WebSocket transport, due to an unchecked copy of the Sec-WebSocket-Version header, through snprintf.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 12:46 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
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CVE-2026-96423 (GCVE-0-2026-96423)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:30 – Updated: 2026-09-29 15:29
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
X11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:28 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
Affected: 4.4.0 , < 4.4.19 (semver) |
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CVE-2026-96417 (GCVE-0-2026-96417)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:30 – Updated: 2026-09-29 15:41
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
RF4CE protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:38 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
Affected: 4.4.0 , < 4.4.19 (semver) |
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CVE-2026-96416 (GCVE-0-2026-96416)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:30 – Updated: 2026-09-29 15:28
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
IEEE 802.11 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:27 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
Affected: 4.4.0 , < 4.4.19 (semver) |
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CVE-2026-95393 (GCVE-0-2026-95393)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:33 – Updated: 2026-09-29 15:47
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
CSN.1 protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:46 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
Affected: 4.4.0 , < 4.4.19 (semver) |
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CVE-2026-95389 (GCVE-0-2026-95389)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:33 – Updated: 2026-09-29 15:17
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
SCTP protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:16 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
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CVE-2026-95388 (GCVE-0-2026-95388)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:31 – Updated: 2026-09-29 15:45
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
Sharkd utility crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:44 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
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CVE-2026-95387 (GCVE-0-2026-95387)
Vulnerability from cvelistv5 – Published: 2026-09-29 09:33 – Updated: 2026-09-29 15:50
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in Wireshark
Summary
SPDY protocol dissector crash in 4.6.0 to 4.6.8 and 4.4.0 to 4.4.18 allows denial of service
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:50 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.9
(semver)
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CVE-2026-94424 (GCVE-0-2026-94424)
Vulnerability from cvelistv5 – Published: 2026-09-21 20:45 – Updated: 2026-09-22 18:04
VLAI
EPSS
VEX
Title
Moore Threads MTT S80 Driver Package IOCTL mtdispkm64.sys sub_140001000 heap-based overflow
Summary
A vulnerability has been found in Moore Threads MTT S80 Driver Package up to 340.150. Impacted is the function sub_140001000 in the library mtdispkm64.sys of the component IOCTL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 18:03 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/408150 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/408150/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-94424 | third-party-advisory |
| https://vuldb.com/submit/894806 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Moore Threads | MTT S80 Driver Package |
Affected:
340.150
cpe:2.3:a:moore_threads:mtt_s80_driver_package:*:*:*:*:*:*:*:* |
{
"containers": {
"adp": [
{
"metrics": [
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"other": {
"content": {
"id": "CVE-2026-94424",
"options": [
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{
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},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T18:03:48.115834Z",
"version": "2.0.3"
},
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:moore_threads:mtt_s80_driver_package:*:*:*:*:*:*:*:*"
],
"modules": [
"IOCTL Handler"
],
"product": "MTT S80 Driver Package",
"vendor": "Moore Threads",
"versions": [
{
"status": "affected",
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}
]
}
],
"credits": [
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"lang": "en",
"type": "reporter",
"value": "Element2023H (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB CNA Team"
}
],
"descriptions": [
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"lang": "en",
"value": "A vulnerability has been found in Moore Threads MTT S80 Driver Package up to 340.150. Impacted is the function sub_140001000 in the library mtdispkm64.sys of the component IOCTL Handler. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The vendor was contacted early about this disclosure but did not respond in any way."
}
],
"metrics": [
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"baseSeverity": "CRITICAL",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X",
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},
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"cvssV2_0": {
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"vectorString": "AV:L/AC:L/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:UR",
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{
"name": "Submit #894806 | MOORE THREADS MTT S80 driver package v340.150 Buffer Overflow",
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"time": "2026-09-21T00:00:00.000Z",
"value": "Advisory disclosed"
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"lang": "en",
"time": "2026-09-21T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-09-21T17:43:44.000Z",
"value": "VulDB entry last update"
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"title": "Moore Threads MTT S80 Driver Package IOCTL mtdispkm64.sys sub_140001000 heap-based overflow",
"x_generator": [
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}
},
"cveMetadata": {
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"assignerShortName": "VulDB",
"cveId": "CVE-2026-94424",
"datePublished": "2026-09-21T20:45:09.555Z",
"dateReserved": "2026-09-21T15:38:12.666Z",
"dateUpdated": "2026-09-22T18:04:06.485Z",
"state": "PUBLISHED"
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Mitigation
Pre-design: Use a language or compiler that performs automatic bounds checking.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.