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().
5381 vulnerabilities reference this CWE, most recent first.
GHSA-928C-RP57-8R75
Vulnerability from github – Published: 2026-09-08 18:32 – Updated: 2026-09-08 18:32
VLAI
Details
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
Severity
8.0 (High)
{
"affected": [],
"aliases": [
"CVE-2026-69271"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:18:39Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.",
"id": "GHSA-928c-rp57-8r75",
"modified": "2026-09-08T18:32:18Z",
"published": "2026-09-08T18:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69271"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69271"
}
],
"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-92PJ-VH86-9J44
Vulnerability from github – Published: 2024-03-19 09:30 – Updated: 2024-03-19 09:30
VLAI
Details
Dell PowerEdge Server BIOS contains a heap-based buffer overflow vulnerability. A local high privileged attacker could potentially exploit this vulnerability to write to otherwise unauthorized memory.
Severity
7.2 (High)
{
"affected": [],
"aliases": [
"CVE-2024-22453"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-19T08:15:06Z",
"severity": "HIGH"
},
"details": "Dell PowerEdge Server BIOS contains a heap-based buffer overflow vulnerability. A local high privileged attacker could potentially exploit this vulnerability to write to otherwise unauthorized memory.",
"id": "GHSA-92pj-vh86-9j44",
"modified": "2024-03-19T09:30:33Z",
"published": "2024-03-19T09:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22453"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/en-us/000223209/dsa-2024-105-security-update-for-dell-poweredge-server-bios-for-a-heap-based-buffer-overflow-vulnerability"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-938P-4C9X-3MPW
Vulnerability from github – Published: 2025-05-13 18:30 – Updated: 2025-05-13 18:30
VLAI
Details
Heap-based buffer overflow in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-29967"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T17:15:57Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-938p-4c9x-3mpw",
"modified": "2025-05-13T18:30:55Z",
"published": "2025-05-13T18:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29967"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29967"
}
],
"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-9397-6R66-QMGQ
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31
VLAI
Details
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Severity
8.5 (High)
{
"affected": [],
"aliases": [
"CVE-2025-49717"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:59Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.",
"id": "GHSA-9397-6r66-qmgq",
"modified": "2025-07-08T18:31:49Z",
"published": "2025-07-08T18:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49717"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49717"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-93C2-32W5-75M9
Vulnerability from github – Published: 2026-08-11 18:31 – Updated: 2026-08-11 18:31
VLAI
Details
Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-62713"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T17:18:21Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-93c2-32w5-75m9",
"modified": "2026-08-11T18:31:14Z",
"published": "2026-08-11T18:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62713"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62713"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-93C5-V3V3-MPQ3
Vulnerability from github – Published: 2022-05-24 17:02 – Updated: 2023-01-19 18:30
VLAI
Details
A vulnerability was found in marvell wifi chip driver in Linux kernel. There is a heap-based buffer overflow in lbs_ibss_join_existing function in drivers/net/wireless/marvell/libertas/cfg.c allows remote attackers to cause a denial of service(system crash) or possibly execute arbitrary code. When STA connects to AP, lbs_ibss_join_existing function will be called for STA.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2019-14896"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-27T09:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in marvell wifi chip driver in Linux kernel. There is a heap-based buffer overflow in lbs_ibss_join_existing function in drivers/net/wireless/marvell/libertas/cfg.c allows remote attackers to cause a denial of service(system crash) or possibly execute arbitrary code. When STA connects to AP, lbs_ibss_join_existing function will be called for STA.",
"id": "GHSA-93c5-v3v3-mpq3",
"modified": "2023-01-19T18:30:21Z",
"published": "2022-05-24T17:02:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14896"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4228-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4228-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4227-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4227-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4226-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4225-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4225-1"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20200103-0001"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MN6MLCN7G7VFTSXSZYXKXEFCUMFBUAXQ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D4ISVNIC44SOGXTUBCIZFSUNQJ5LRKNZ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MN6MLCN7G7VFTSXSZYXKXEFCUMFBUAXQ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4ISVNIC44SOGXTUBCIZFSUNQJ5LRKNZ"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14896"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1774875"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2019-14896"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:3548"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/155879/Kernel-Live-Patch-Security-Notice-LSN-0061-1.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-93CX-F9GG-Q2WG
Vulnerability from github – Published: 2024-10-30 00:31 – Updated: 2025-02-03 18:30
VLAI
Details
A maliciously crafted MODEL file when parsed in libodxdll.dll through Autodesk AutoCAD can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code in the context of the current process.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-8594"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-29T22:15:07Z",
"severity": "HIGH"
},
"details": "A maliciously crafted MODEL file when parsed in libodxdll.dll through Autodesk AutoCAD can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code in the context of the current process.",
"id": "GHSA-93cx-f9gg-q2wg",
"modified": "2025-02-03T18:30:38Z",
"published": "2024-10-30T00:31:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8594"
},
{
"type": "WEB",
"url": "https://autodesk.com/trust/security-advisories/adsk-sa-2024-0019"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/trust/security-advisories/adsk-sa-2024-0019"
}
],
"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-93GX-49QX-8F59
Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2022-05-24 17:36
VLAI
Details
A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
{
"affected": [],
"aliases": [
"CVE-2020-25712"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-15T17:15:00Z",
"severity": "HIGH"
},
"details": "A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"id": "GHSA-93gx-49qx-8f59",
"modified": "2022-05-24T17:36:28Z",
"published": "2022-05-24T17:36:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25712"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1887276"
},
{
"type": "WEB",
"url": "https://lists.x.org/archives/xorg-announce/2020-December/003066.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-93VJ-795W-GH3C
Vulnerability from github – Published: 2024-06-11 21:32 – Updated: 2024-06-20 15:31
VLAI
Details
Heap buffer overflow in Tab Groups in Google Chrome prior to 126.0.6478.54 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-5835"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-11T21:15:54Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Tab Groups in Google Chrome prior to 126.0.6478.54 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-93vj-795w-gh3c",
"modified": "2024-06-20T15:31:11Z",
"published": "2024-06-11T21:32:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-5835"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/341991535"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7VXA32LXMNK3DSK3JBRLTBPFUH7LTODU"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MPU7AB53QQVNTBPGRMJRY5SXJNYWW3FX"
}
],
"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-942X-H2H3-8WXM
Vulnerability from github – Published: 2025-01-30 06:30 – Updated: 2025-02-07 18:31
VLAI
Details
In some cases, the ktrace facility will log the contents of kernel structures to userspace. In one such case, ktrace dumps a variable-sized sockaddr to userspace. There, the full sockaddr is copied, even when it is shorter than the full size. This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace.
It is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace.
Severity
4.9 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-0662"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-30T05:15:10Z",
"severity": "MODERATE"
},
"details": "In some cases, the ktrace facility will log the contents of kernel structures to userspace. In one such case, ktrace dumps a variable-sized sockaddr to userspace. There, the full sockaddr is copied, even when it is shorter than the full size. This can result in up to 14 uninitialized bytes of kernel memory being copied out to userspace.\n\nIt is possible for an unprivileged userspace program to leak 14 bytes of a kernel heap allocation to userspace.",
"id": "GHSA-942x-h2h3-8wxm",
"modified": "2025-02-07T18:31:17Z",
"published": "2025-01-30T06:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0662"
},
{
"type": "WEB",
"url": "https://security.freebsd.org/advisories/FreeBSD-SA-25:04.ktrace.asc"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20250207-0006"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"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.