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().
5349 vulnerabilities reference this CWE, most recent first.
GHSA-46CV-4FGX-P89X
Vulnerability from github – Published: 2026-05-29 00:38 – Updated: 2026-05-29 18:31
VLAI
Details
Heap buffer overflow in ANGLE in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
Severity
8.3 (High)
{
"affected": [],
"aliases": [
"CVE-2026-9924"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T23:16:50Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in ANGLE in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-46cv-4fgx-p89x",
"modified": "2026-05-29T18:31:25Z",
"published": "2026-05-29T00:38:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9924"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/500398345"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-473G-6PV5-56GC
Vulnerability from github – Published: 2025-04-08 18:34 – Updated: 2025-04-08 18:34
VLAI
Details
Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-21222"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-08T18:15:45Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-473g-6pv5-56gc",
"modified": "2025-04-08T18:34:44Z",
"published": "2025-04-08T18:34:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21222"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21222"
}
],
"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-475C-8MW8-7M88
Vulnerability from github – Published: 2024-08-14 18:32 – Updated: 2024-08-14 18:32
VLAI
Details
Buffer overflow in some Zoom Workplace Apps, SDKs, Rooms Clients, and Rooms Controllers may allow an authenticated user to conduct a denial of service via network access.
Severity
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-42437"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-14T17:15:17Z",
"severity": "MODERATE"
},
"details": "Buffer overflow in some Zoom Workplace Apps, SDKs, Rooms Clients, and Rooms Controllers may allow an authenticated user to conduct a denial of service via network access.",
"id": "GHSA-475c-8mw8-7m88",
"modified": "2024-08-14T18:32:43Z",
"published": "2024-08-14T18:32:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42437"
},
{
"type": "WEB",
"url": "https://www.zoom.com/en/trust/security-bulletin/zsb-24031"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4764-R75X-H867
Vulnerability from github – Published: 2025-04-14 09:30 – Updated: 2025-04-14 09:30
VLAI
Details
Heap-based Buffer Overflow vulnerability in openEuler giflib on Linux. This vulnerability is associated with program files gif2rgb.C.
This issue affects giflib: through 5.2.2.
Severity
7.3 (High)
{
"affected": [],
"aliases": [
"CVE-2025-31344"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-14T08:15:13Z",
"severity": "HIGH"
},
"details": "Heap-based Buffer Overflow vulnerability in openEuler giflib on Linux. This vulnerability is associated with program files gif2rgb.C.\n\nThis issue affects giflib: through 5.2.2.",
"id": "GHSA-4764-r75x-h867",
"modified": "2025-04-14T09:30:25Z",
"published": "2025-04-14T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31344"
},
{
"type": "WEB",
"url": "https://gitee.com/src-openeuler/giflib/pulls/54"
},
{
"type": "WEB",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1292"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/07/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/07/4"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/07/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/07/6"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/08/1"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/09/5"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/09/7"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/10/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4783-M498-CPPR
Vulnerability from github – Published: 2025-03-11 18:32 – Updated: 2025-03-11 18:32
VLAI
Details
Heap-based buffer overflow in Role: Windows Hyper-V allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-24050"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T17:16:27Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Role: Windows Hyper-V allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-4783-m498-cppr",
"modified": "2025-03-11T18:32:16Z",
"published": "2025-03-11T18:32:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24050"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24050"
}
],
"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-479G-VCJ5-V8CM
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-70203"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:20:04Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Media Player allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-479g-vcj5-v8cm",
"modified": "2026-09-08T18:33:05Z",
"published": "2026-09-08T18:33:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70203"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70203"
}
],
"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-47PX-WRJ6-FWJ9
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-77907"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:20:40Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-47px-wrj6-fwj9",
"modified": "2026-09-08T18:33:24Z",
"published": "2026-09-08T18:33:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77907"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77907"
}
],
"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-47QG-3W6C-7G7Q
Vulnerability from github – Published: 2022-09-10 00:00 – Updated: 2022-09-15 00:00
VLAI
Details
OpenHarmony-v3.1.2 and prior versions have a heap overflow vulnerability. Local attackers can trigger a heap overflow and get network sensitive information.
Severity
{
"affected": [],
"aliases": [
"CVE-2022-38701"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-09T15:15:00Z",
"severity": "LOW"
},
"details": "OpenHarmony-v3.1.2 and prior versions have a heap overflow vulnerability. Local attackers can trigger a heap overflow and get network sensitive information.",
"id": "GHSA-47qg-3w6c-7g7q",
"modified": "2022-09-15T00:00:18Z",
"published": "2022-09-10T00:00:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38701"
},
{
"type": "WEB",
"url": "https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-09.md"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-47VX-6PCH-WF2R
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-2026-83974"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:21:07Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-47vx-6pch-wf2r",
"modified": "2026-09-08T18:33:36Z",
"published": "2026-09-08T18:33:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83974"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83974"
}
],
"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-47W9-22R8-93HX
Vulnerability from github – Published: 2026-07-02 00:31 – Updated: 2026-07-02 18:36
VLAI
Details
Inappropriate implementation in V8 in Google Chrome prior to 150.0.7871.46 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: Low)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-14415"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-01T23:16:49Z",
"severity": "HIGH"
},
"details": "Inappropriate implementation in V8 in Google Chrome prior to 150.0.7871.46 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: Low)",
"id": "GHSA-47w9-22r8-93hx",
"modified": "2026-07-02T18:36:24Z",
"published": "2026-07-02T00:31:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14415"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/515086856"
}
],
"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"
}
]
}
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.