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().
5347 vulnerabilities reference this CWE, most recent first.
GHSA-4857-97WP-F4QJ
Vulnerability from github – Published: 2024-07-09 18:30 – Updated: 2024-07-09 18:30
VLAI
Details
SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-21414"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T17:15:13Z",
"severity": "HIGH"
},
"details": "SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability",
"id": "GHSA-4857-97wp-f4qj",
"modified": "2024-07-09T18:30:49Z",
"published": "2024-07-09T18:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21414"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21414"
}
],
"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-488M-4FX8-F36V
Vulnerability from github – Published: 2025-05-16 15:31 – Updated: 2025-05-16 18:31
VLAI
Details
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.
The included FastCGI library is affected by CVE-2025-23016, causing an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-40907"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-16T13:15:52Z",
"severity": "MODERATE"
},
"details": "FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.\n\nThe included FastCGI library is affected by CVE-2025-23016, causing an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.",
"id": "GHSA-488m-4fx8-f36v",
"modified": "2025-05-16T18:31:06Z",
"published": "2025-05-16T15:31:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40907"
},
{
"type": "WEB",
"url": "https://github.com/FastCGI-Archives/fcgi2/issues/67"
},
{
"type": "WEB",
"url": "https://github.com/perl-catalyst/FCGI/issues/14"
},
{
"type": "WEB",
"url": "https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5"
},
{
"type": "WEB",
"url": "https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.patch"
},
{
"type": "WEB",
"url": "https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2025/04/23/4"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-4895-4GJ9-M7GC
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-54124"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:08Z",
"severity": "HIGH"
},
"details": "Integer overflow or wraparound in Windows Terminal allows an unauthorized attacker to execute code locally.",
"id": "GHSA-4895-4gj9-m7gc",
"modified": "2026-07-14T18:32:31Z",
"published": "2026-07-14T18:32:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54124"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54124"
}
],
"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-48G2-452Q-4XQC
Vulnerability from github – Published: 2024-05-14 18:31 – Updated: 2024-05-14 18:31
VLAI
Details
Windows Hyper-V Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-30017"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T17:16:48Z",
"severity": "HIGH"
},
"details": "Windows Hyper-V Remote Code Execution Vulnerability",
"id": "GHSA-48g2-452q-4xqc",
"modified": "2024-05-14T18:31:04Z",
"published": "2024-05-14T18:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30017"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30017"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-48J9-XH9V-WH6M
Vulnerability from github – Published: 2024-02-21 09:31 – Updated: 2025-11-04 21:31
VLAI
Details
The issue was addressed with improved bounds checks. This issue is fixed in watchOS 10.1, macOS Sonoma 14.1, tvOS 17.1, iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, macOS Ventura 13.6.1. Processing a maliciously crafted image may lead to heap corruption.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-42848"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-21T07:15:49Z",
"severity": "HIGH"
},
"details": "The issue was addressed with improved bounds checks. This issue is fixed in watchOS 10.1, macOS Sonoma 14.1, tvOS 17.1, iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, macOS Ventura 13.6.1. Processing a maliciously crafted image may lead to heap corruption.",
"id": "GHSA-48j9-xh9v-wh6m",
"modified": "2025-11-04T21:31:10Z",
"published": "2024-02-21T09:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42848"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213981"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213982"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213984"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213985"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213987"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT213988"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213982"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213984"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213988"
}
],
"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-48PV-J3X3-CW7V
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-2024-29985"
],
"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-48pv-j3x3-cw7v",
"modified": "2024-04-09T18:30:28Z",
"published": "2024-04-09T18:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-29985"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29985"
}
],
"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-48V5-2VRV-8G64
Vulnerability from github – Published: 2025-05-13 18:30 – Updated: 2025-05-13 18:30
VLAI
Details
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-29962"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-13T17:15:56Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-48v5-2vrv-8g64",
"modified": "2025-05-13T18:30:54Z",
"published": "2025-05-13T18:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29962"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29962"
}
],
"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-492C-RR88-QFHX
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31
VLAI
Details
Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-49672"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:51Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-492c-rr88-qfhx",
"modified": "2025-07-08T18:31:46Z",
"published": "2025-07-08T18:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49672"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49672"
}
],
"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-495J-R955-Q8F3
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-2026-50461"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:17:51Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.",
"id": "GHSA-495j-r955-q8f3",
"modified": "2026-07-14T18:32:25Z",
"published": "2026-07-14T18:32:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50461"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50461"
}
],
"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-499Q-6RMH-W6P7
Vulnerability from github – Published: 2026-09-05 06:32 – Updated: 2026-09-05 06:32
VLAI
Details
In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.
Severity
6.9 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-86142"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-05T05:17:13Z",
"severity": "MODERATE"
},
"details": "In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.",
"id": "GHSA-499q-6rmh-w6p7",
"modified": "2026-09-05T06:32:37Z",
"published": "2026-09-05T06:32:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86142"
},
{
"type": "WEB",
"url": "https://github.com/GNOME/libxml2/commit/6b3a736c0edc74ceec3d82f5252499d7911b3a58"
},
{
"type": "WEB",
"url": "https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1113"
}
],
"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:L",
"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.