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().
4193 vulnerabilities reference this CWE, most recent first.
GHSA-79CP-QRF9-6HV3
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30
VLAI
Details
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-42993"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:15Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-79cp-qrf9-6hv3",
"modified": "2026-06-09T18:30:46Z",
"published": "2026-06-09T18:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42993"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42993"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-79GC-6J6C-PF3R
Vulnerability from github – Published: 2024-06-11 21:32 – Updated: 2024-07-03 18:44
VLAI
Details
libiec61850 v1.5 was discovered to contain a heap overflow via the BerEncoder_encodeLength function at /asn1/ber_encoder.c.
Severity
7.4 (High)
{
"affected": [],
"aliases": [
"CVE-2024-36702"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-11T19:16:07Z",
"severity": "HIGH"
},
"details": "libiec61850 v1.5 was discovered to contain a heap overflow via the BerEncoder_encodeLength function at /asn1/ber_encoder.c.",
"id": "GHSA-79gc-6j6c-pf3r",
"modified": "2024-07-03T18:44:50Z",
"published": "2024-06-11T21:32:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36702"
},
{
"type": "WEB",
"url": "https://github.com/mz-automation/libiec61850/issues/505"
},
{
"type": "WEB",
"url": "https://github.com/mz-automation/libiec61850"
},
{
"type": "WEB",
"url": "http://libiec61850.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-79M6-3VJ5-MRF7
Vulnerability from github – Published: 2024-06-11 18:30 – Updated: 2024-06-11 18:30
VLAI
Details
Windows OLE Remote Code Execution Vulnerability
Severity
8.0 (High)
{
"affected": [],
"aliases": [
"CVE-2024-30077"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-11T17:15:54Z",
"severity": "HIGH"
},
"details": "Windows OLE Remote Code Execution Vulnerability",
"id": "GHSA-79m6-3vj5-mrf7",
"modified": "2024-06-11T18:30:49Z",
"published": "2024-06-11T18:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30077"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30077"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-79QR-9MF7-FR3G
Vulnerability from github – Published: 2024-02-29 03:33 – Updated: 2025-11-04 00:30
VLAI
Details
texlive-bin commit c515e was discovered to contain heap buffer overflow via the function ttfLoadHDMX:ttfdump. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted TTF file.
Severity
8.1 (High)
{
"affected": [],
"aliases": [
"CVE-2024-25262"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-29T01:44:15Z",
"severity": "HIGH"
},
"details": "texlive-bin commit c515e was discovered to contain heap buffer overflow via the function ttfLoadHDMX:ttfdump. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted TTF file.",
"id": "GHSA-79qr-9mf7-fr3g",
"modified": "2025-11-04T00:30:48Z",
"published": "2024-02-29T03:33:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25262"
},
{
"type": "WEB",
"url": "https://bugs.launchpad.net/ubuntu/+source/texlive-bin/+bug/2047912"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00032.html"
},
{
"type": "WEB",
"url": "https://tug.org/svn/texlive/trunk/Build/source/texk/ttfdump/ChangeLog?revision=69605\u0026view=co"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7C29-93MG-22JF
Vulnerability from github – Published: 2025-02-14 00:30 – Updated: 2025-03-19 21:30
VLAI
Details
A Structured Exception Handler based buffer overflow vulnerability exists in Effectmatrix Total Video Converter Command Line (TVCC) 2.50 when a specially crafted file is passed to the -ff parameter. The vulnerability occurs due to improper handling of file input with overly long characters, leading to memory corruption. This can result in arbitrary code execution or denial of service.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-53310"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-13T23:15:10Z",
"severity": "MODERATE"
},
"details": "A Structured Exception Handler based buffer overflow vulnerability exists in Effectmatrix Total Video Converter Command Line (TVCC) 2.50 when a specially crafted file is passed to the -ff parameter. The vulnerability occurs due to improper handling of file input with overly long characters, leading to memory corruption. This can result in arbitrary code execution or denial of service.",
"id": "GHSA-7c29-93mg-22jf",
"modified": "2025-03-19T21:30:44Z",
"published": "2025-02-14T00:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53310"
},
{
"type": "WEB",
"url": "https://github.com/ufist/vulnerability-research/blob/main/CVE-2024-53310/CVE-2024-53310.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-7C63-32M9-7MFG
Vulnerability from github – Published: 2026-02-21 00:31 – Updated: 2026-06-30 03:35
VLAI
Details
GIMP ICO File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of ICO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28599.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-0797"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-20T22:16:19Z",
"severity": "HIGH"
},
"details": "GIMP ICO File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of ICO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28599.",
"id": "GHSA-7c63-32m9-7mfg",
"modified": "2026-06-30T03:35:37Z",
"published": "2026-02-21T00:31:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0797"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:4173"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5113"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5388"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5389"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5390"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5391"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5434"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5435"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5436"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:5437"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-0797"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2441524"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/gimp/-/commit/69cc6b1a6645dc9c4d7b484483dbe6a84b922b9c"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-0797.json"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-050"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7CF2-63MG-HV4J
Vulnerability from github – Published: 2024-01-29 15:30 – Updated: 2024-06-10 18:30
VLAI
Details
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
Severity
4.9 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-40548"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-29T15:15:08Z",
"severity": "MODERATE"
},
"details": "A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.",
"id": "GHSA-7cf2-63mg-hv4j",
"modified": "2024-06-10T18:30:52Z",
"published": "2024-01-29T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40548"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1834"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1835"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1873"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1876"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1883"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1902"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1903"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:1959"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2024:2086"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-40548"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241782"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-7CMC-QQ6P-4MV2
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-50655"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:17:59Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.",
"id": "GHSA-7cmc-qq6p-4mv2",
"modified": "2026-07-14T18:32:28Z",
"published": "2026-07-14T18:32:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50655"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50655"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7CWX-6WM5-R7M8
Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-08 18:33
VLAI
Details
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-43589"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-08T18:15:26Z",
"severity": "HIGH"
},
"details": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
"id": "GHSA-7cwx-6wm5-r7m8",
"modified": "2024-10-08T18:33:17Z",
"published": "2024-10-08T18:33:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43589"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43589"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7FCF-6P48-FVVR
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-49797"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:16:55Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.",
"id": "GHSA-7fcf-6p48-fvvr",
"modified": "2026-07-14T18:32:02Z",
"published": "2026-07-14T18:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49797"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49797"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.