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.
GHSA-8RH6-MJG6-WF8Q
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-78509"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:20:46Z",
"severity": "CRITICAL"
},
"details": "Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-8rh6-mjg6-wf8q",
"modified": "2026-09-08T18:33:26Z",
"published": "2026-09-08T18:33:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78509"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78509"
}
],
"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-8RJ7-6QP9-5FMJ
Vulnerability from github – Published: 2026-09-08 18:32 – Updated: 2026-09-08 18:32
VLAI
Details
Integer underflow (wrap or wraparound) in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-69421"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:19:05Z",
"severity": "HIGH"
},
"details": "Integer underflow (wrap or wraparound) in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-8rj7-6qp9-5fmj",
"modified": "2026-09-08T18:32:32Z",
"published": "2026-09-08T18:32:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69421"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69421"
}
],
"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-8RWG-JWGW-WFJ5
Vulnerability from github – Published: 2026-09-08 18:32 – Updated: 2026-09-08 18:32
VLAI
Details
Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.
Severity
7.3 (High)
{
"affected": [],
"aliases": [
"CVE-2026-69477"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:19:13Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office Access allows an authorized attacker to execute code locally.",
"id": "GHSA-8rwg-jwgw-wfj5",
"modified": "2026-09-08T18:32:38Z",
"published": "2026-09-08T18:32:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69477"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69477"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8V2M-9Q25-Q4CV
Vulnerability from github – Published: 2026-09-08 18:32 – Updated: 2026-09-08 18:32
VLAI
Details
Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-69590"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:19:29Z",
"severity": "CRITICAL"
},
"details": "Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim\u0027s machine",
"id": "GHSA-8v2m-9q25-q4cv",
"modified": "2026-09-08T18:32:47Z",
"published": "2026-09-08T18:32:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69590"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69590"
}
],
"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-8VCC-HRHR-Q8HF
Vulnerability from github – Published: 2022-01-03 00:00 – Updated: 2025-05-22 15:34
VLAI
Details
mruby is vulnerable to Heap-based Buffer Overflow
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-0080"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-02T12:15:00Z",
"severity": "CRITICAL"
},
"details": "mruby is vulnerable to Heap-based Buffer Overflow",
"id": "GHSA-8vcc-hrhr-q8hf",
"modified": "2025-05-22T15:34:37Z",
"published": "2022-01-03T00:00:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0080"
},
{
"type": "WEB",
"url": "https://github.com/mruby/mruby/commit/28ccc664e5dcd3f9d55173e9afde77c4705a9ab6"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/59a70392-4864-4ce3-8e35-6ac2111d1e2e"
}
],
"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-8VF8-R7RR-H923
Vulnerability from github – Published: 2024-04-09 18:30 – Updated: 2024-04-09 18:30
VLAI
Details
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-26205"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-09T17:15:38Z",
"severity": "HIGH"
},
"details": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
"id": "GHSA-8vf8-r7rr-h923",
"modified": "2024-04-09T18:30:25Z",
"published": "2024-04-09T18:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26205"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26205"
}
],
"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-8VFJ-3W4X-2JJ6
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-83969"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:21:06Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-8vfj-3w4x-2jj6",
"modified": "2026-09-08T18:33:36Z",
"published": "2026-09-08T18:33:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83969"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83969"
}
],
"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-8VFJ-Q2CP-5M5J
Vulnerability from github – Published: 2026-04-14 23:32 – Updated: 2026-04-16 15:33
VLAI
Summary
ImageMagick has a heap buffer overflow read in magnify operation via unrecognized magnify:method value
Details
An unrecognized magnify:method will result in an out of bounds read in the magnify operation.
==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a000000b30
READ of size 4 at 0x61a000000b30 thread T0
Severity
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.12.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2026-04-14T23:32:22Z",
"nvd_published_at": null,
"severity": "LOW"
},
"details": "An unrecognized magnify:method will result in an out of bounds read in the magnify operation.\n\n```\n==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a000000b30\nREAD of size 4 at 0x61a000000b30 thread T0\n```",
"id": "GHSA-8vfj-q2cp-5m5j",
"modified": "2026-04-16T15:33:26Z",
"published": "2026-04-14T23:32:22Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8vfj-q2cp-5m5j"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick has a heap buffer overflow read in magnify operation via unrecognized magnify:method value"
}
GHSA-8VJH-2WG9-PH96
Vulnerability from github – Published: 2026-08-11 18:31 – Updated: 2026-08-11 18:31
VLAI
Details
Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-61937"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T17:18:17Z",
"severity": "HIGH"
},
"details": "Integer overflow or wraparound in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-8vjh-2wg9-ph96",
"modified": "2026-08-11T18:31:12Z",
"published": "2026-08-11T18:31:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61937"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61937"
}
],
"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-8VQV-GV6P-PJJR
Vulnerability from github – Published: 2022-12-23 00:30 – Updated: 2022-12-30 03:30
VLAI
Details
A heap based buffer overflow vulnerability exists in tile decoding code of TIFF image parser in OpenImageIO master-branch-9aeece7a and v2.3.19.0. A specially-crafted TIFF file can lead to an out of bounds memory corruption, which can result in arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-41639"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-22T22:15:00Z",
"severity": "CRITICAL"
},
"details": "A heap based buffer overflow vulnerability exists in tile decoding code of TIFF image parser in OpenImageIO master-branch-9aeece7a and v2.3.19.0. A specially-crafted TIFF file can lead to an out of bounds memory corruption, which can result in arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.",
"id": "GHSA-8vqv-gv6p-pjjr",
"modified": "2022-12-30T03:30:19Z",
"published": "2022-12-23T00:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41639"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3LET4MEPBSBJZK4EMLEBY4FUXKU5BMN"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-33"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1633"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5384"
}
],
"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"
}
]
}
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.