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().
4129 vulnerabilities reference this CWE, most recent first.
GHSA-H5V5-598W-CQH3
Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30
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-2025-64678"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-09T18:16:06Z",
"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-h5v5-598w-cqh3",
"modified": "2025-12-09T18:30:48Z",
"published": "2025-12-09T18:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64678"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64678"
}
],
"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-H5V7-C9M8-XW29
Vulnerability from github – Published: 2026-01-13 18:31 – Updated: 2026-01-13 18:31
VLAI
Details
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-20876"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-13T18:16:17Z",
"severity": "MODERATE"
},
"details": "Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-h5v7-c9m8-xw29",
"modified": "2026-01-13T18:31:10Z",
"published": "2026-01-13T18:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20876"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20876"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H5VR-W6QH-FFWP
Vulnerability from github – Published: 2026-02-19 00:30 – Updated: 2026-02-19 00:30
VLAI
Details
Heap buffer overflow in Media in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-2650"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-18T22:16:26Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Media in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-h5vr-w6qh-ffwp",
"modified": "2026-02-19T00:30:30Z",
"published": "2026-02-19T00:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2650"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/02/stable-channel-update-for-desktop_18.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/476461867"
}
],
"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-H5XG-83P6-J59J
Vulnerability from github – Published: 2024-02-13 18:38 – Updated: 2024-02-13 18:38
VLAI
Details
Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-21367"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-13T18:15:54Z",
"severity": "HIGH"
},
"details": "Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability",
"id": "GHSA-h5xg-83p6-j59j",
"modified": "2024-02-13T18:38:23Z",
"published": "2024-02-13T18:38:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21367"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21367"
}
],
"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-H624-FW6C-7JXC
Vulnerability from github – Published: 2024-03-27 03:31 – Updated: 2024-08-01 15:31
VLAI
Details
A heap buffer overflow occurs in dfs_v2 dfs_file in RT-Thread through 5.0.2.
Severity
8.4 (High)
{
"affected": [],
"aliases": [
"CVE-2024-24334"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-27T03:15:11Z",
"severity": "HIGH"
},
"details": "A heap buffer overflow occurs in dfs_v2 dfs_file in RT-Thread through 5.0.2.",
"id": "GHSA-h624-fw6c-7jxc",
"modified": "2024-08-01T15:31:34Z",
"published": "2024-03-27T03:31:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-24334"
},
{
"type": "WEB",
"url": "https://github.com/RT-Thread/rt-thread/issues/8282"
},
{
"type": "WEB",
"url": "https://github.com/RT-Thread/rt-thread/pull/8305"
},
{
"type": "WEB",
"url": "https://github.com/hnsecurity/vulns/blob/main/HNS-2024-05-rt-thread.txt"
},
{
"type": "WEB",
"url": "https://security.humanativaspa.it/multiple-vulnerabilities-in-rt-thread-rtos"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Mar/28"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2024/03/05/1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H63H-P87Q-MPPP
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-55039"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:15Z",
"severity": "HIGH"
},
"details": "Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-h63h-p87q-mppp",
"modified": "2026-07-14T18:32:33Z",
"published": "2026-07-14T18:32:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55039"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55039"
}
],
"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-H64P-RWJV-9XCW
Vulnerability from github – Published: 2025-11-05 00:31 – Updated: 2025-11-05 00:31
VLAI
Details
A maliciously crafted project file may cause a heap-based buffer overflow in Fuji Electric Monitouch V-SFT-6, which may allow the attacker to execute arbitrary code.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-54496"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-04T22:16:28Z",
"severity": "HIGH"
},
"details": "A maliciously crafted project file may cause a heap-based buffer \noverflow in \nFuji Electric Monitouch V-SFT-6, which may allow the attacker to execute arbitrary code.",
"id": "GHSA-h64p-rwjv-9xcw",
"modified": "2025-11-05T00:31:33Z",
"published": "2025-11-05T00:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54496"
},
{
"type": "WEB",
"url": "https://felib.fujielectric.co.jp/en/document_search?tab=software\u0026document1%5B1%5D=M10009\u0026document2%5B1%5D=M20104\u0026product1%5B1%5D=P10003\u0026product2%5B1%5D=P20023\u0026product3%5B1%5D=P30623\u0026product4%5B1%5D=S11133\u0026discontinued%5B1%5D=0\u0026count=20\u0026sort=en_title\u0026page=1\u0026region=en-glb"
},
{
"type": "WEB",
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsa-25-308-01.json"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-308-01"
}
],
"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-H655-847G-Q4F7
Vulnerability from github – Published: 2026-07-08 09:31 – Updated: 2026-07-08 09:31
VLAI
Details
Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a heap buffer overflow via SetFont due to missing glyph boundary checks.
Severity
8.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-55999"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-08T09:16:29Z",
"severity": "HIGH"
},
"details": "Local attackers with a X connection able to provide PCX fonts to the X \nserver xorg-server before 21.2.24 and xwayland before 24.1.13 could \ncause a heap buffer overflow via SetFont due to missing glyph boundary checks.",
"id": "GHSA-h655-847g-q4f7",
"modified": "2026-07-08T09:31:49Z",
"published": "2026-07-08T09:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55999"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/xorg/xserver/-/commit/fbf7bac22e2c6bd627fb042742a23318263edae1"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2026/07/08/2"
}
],
"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-H6FX-M56R-MVW2
Vulnerability from github – Published: 2024-12-12 03:33 – Updated: 2024-12-12 03:33
VLAI
Details
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2024-49104"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-12T02:04:36Z",
"severity": "HIGH"
},
"details": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
"id": "GHSA-h6fx-m56r-mvw2",
"modified": "2024-12-12T03:33:05Z",
"published": "2024-12-12T03:33:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49104"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49104"
}
],
"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-H6J5-P62Q-4G5Q
Vulnerability from github – Published: 2025-07-09 00:30 – Updated: 2025-07-09 00:30
VLAI
Details
InDesign Desktop versions 19.5.3 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-2025-47103"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T22:15:25Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions 19.5.3 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-h6j5-p62q-4g5q",
"modified": "2025-07-09T00:30:31Z",
"published": "2025-07-09T00:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47103"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb25-60.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.