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().
4096 vulnerabilities reference this CWE, most recent first.
GHSA-Q5WR-PFJ7-HC42
Vulnerability from github – Published: 2024-12-10 21:30 – Updated: 2024-12-10 21:30
VLAI
Details
InDesign Desktop versions ID19.5, ID18.5.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-49545"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-10T21:15:17Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions ID19.5, ID18.5.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-q5wr-pfj7-hc42",
"modified": "2024-12-10T21:30:53Z",
"published": "2024-12-10T21:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49545"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb24-97.html"
}
],
"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-Q67P-8XJR-9RWQ
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-50499"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:17:56Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-q67p-8xjr-9rwq",
"modified": "2026-07-14T18:32:28Z",
"published": "2026-07-14T18:32:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50499"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50499"
}
],
"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-Q6CX-465R-334M
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-54990"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:17:06Z",
"severity": "CRITICAL"
},
"details": "Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-q6cx-465r-334m",
"modified": "2026-07-14T18:32:08Z",
"published": "2026-07-14T18:32:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54990"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54990"
}
],
"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-Q6F4-2QXX-8CWW
Vulnerability from github – Published: 2026-02-12 21:31 – Updated: 2026-02-27 00:31
VLAI
Details
A heap buffer overflow in the processRequest function of Open TFTP Server MultiThreaded v1.7 allows attackers to cause a Denial of Service (DoS) via a crafted DATA packet.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2025-67433"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-12T20:16:02Z",
"severity": "HIGH"
},
"details": "A heap buffer overflow in the processRequest function of Open TFTP Server MultiThreaded v1.7 allows attackers to cause a Denial of Service (DoS) via a crafted DATA packet.",
"id": "GHSA-q6f4-2qxx-8cww",
"modified": "2026-02-27T00:31:44Z",
"published": "2026-02-12T21:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67433"
},
{
"type": "WEB",
"url": "https://gist.github.com/Hyobin/f1b7d48d29e60a378bb9c88ba8b8080a"
},
{
"type": "WEB",
"url": "https://gist.github.com/transparencybeam/f1b7d48d29e60a378bb9c88ba8b8080a"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/tftp-server/files/tftp%20server%20multithreaded"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q6PP-VPRG-P5G9
Vulnerability from github – Published: 2022-05-24 19:17 – Updated: 2022-08-22 00:00
VLAI
Details
vim is vulnerable to Heap-based Buffer Overflow
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2021-3875"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-10-15T14:15:00Z",
"severity": "HIGH"
},
"details": "vim is vulnerable to Heap-based Buffer Overflow",
"id": "GHSA-q6pp-vprg-p5g9",
"modified": "2022-08-22T00:00:54Z",
"published": "2022-05-24T19:17:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3875"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/35a319b77f897744eec1155b736e9372c9c5575f"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/5cdbc168-6ba1-4bc2-ba6c-28be12166a53"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q6WR-5CJV-CQVH
Vulnerability from github – Published: 2024-04-09 18:30 – Updated: 2024-04-09 18:30
VLAI
Details
Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-29983"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-09T17:16:01Z",
"severity": "HIGH"
},
"details": "Microsoft OLE DB Driver for SQL Server Remote Code Execution Vulnerability",
"id": "GHSA-q6wr-5cjv-cqvh",
"modified": "2024-04-09T18:30:28Z",
"published": "2024-04-09T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-29983"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29983"
}
],
"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-Q774-GVH6-H2CC
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-11-11 18:30
VLAI
Details
Heap-based buffer overflow in Windows Subsystem for Linux GUI allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-62220"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T18:15:49Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Subsystem for Linux GUI allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-q774-gvh6-h2cc",
"modified": "2025-11-11T18:30:23Z",
"published": "2025-11-11T18:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62220"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62220"
}
],
"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-Q7GX-445J-XWQ8
Vulnerability from github – Published: 2025-09-08 15:37 – Updated: 2025-11-05 00:31
VLAI
Details
Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact
Severity
5.6 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-40929"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-08T15:15:35Z",
"severity": "MODERATE"
},
"details": "Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact",
"id": "GHSA-q7gx-445j-xwq8",
"modified": "2025-11-05T00:31:26Z",
"published": "2025-09-08T15:37:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40929"
},
{
"type": "WEB",
"url": "https://github.com/rurban/Cpanel-JSON-XS/commit/378236219eaa35742c3962ecbdee364903b0a1f2.patch"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/09/msg00034.html"
},
{
"type": "WEB",
"url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.39/source/XS.xs#L713"
},
{
"type": "WEB",
"url": "https://metacpan.org/release/RURBAN/Cpanel-JSON-XS-4.40/changes"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/09/08/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-Q7MW-GXPM-RGH5
Vulnerability from github – Published: 2024-10-10 18:31 – Updated: 2024-10-17 15:31
VLAI
Details
Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can manipulate users to visit a malicious page or file to leverage this vulnerability to execute code in the context of the current process.
Severity
{
"affected": [],
"aliases": [
"CVE-2024-47964"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-10T18:15:08Z",
"severity": "HIGH"
},
"details": "Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can manipulate users to visit a malicious page or file to leverage this vulnerability to execute code in the context of the current process.",
"id": "GHSA-q7mw-gxpm-rgh5",
"modified": "2024-10-17T15:31:08Z",
"published": "2024-10-10T18:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47964"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-284-21"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-Q7XQ-72RF-5J5W
Vulnerability from github – Published: 2026-04-14 21:31 – Updated: 2026-04-14 21:31
VLAI
Details
Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-27311"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T20:16:34Z",
"severity": "HIGH"
},
"details": "Bridge versions 16.0.2, 15.1.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-q7xq-72rf-5j5w",
"modified": "2026-04-14T21:31:48Z",
"published": "2026-04-14T21:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27311"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/bridge/apsb26-39.html"
}
],
"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.