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().
4208 vulnerabilities reference this CWE, most recent first.
GHSA-36C8-9MVW-XR8H
Vulnerability from github – Published: 2024-05-16 12:30 – Updated: 2024-05-16 12:30Adobe Framemaker versions 2020.5, 2022.3 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.
{
"affected": [],
"aliases": [
"CVE-2024-30288"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-16T12:15:10Z",
"severity": "HIGH"
},
"details": "Adobe Framemaker versions 2020.5, 2022.3 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-36c8-9mvw-xr8h",
"modified": "2024-05-16T12:30:22Z",
"published": "2024-05-16T12:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30288"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/framemaker/apsb24-37.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-36G4-WRRW-63FH
Vulnerability from github – Published: 2025-07-15 09:30 – Updated: 2025-07-15 09:30A heap-based buffer overflow in Fortinet FortiOS versions 7.6.0 through 7.6.2, 7.4.0 through 7.4.7, 7.2.4 through 7.2.11 allows an attacker to escalate its privileges via a specially crafted CLI command
{
"affected": [],
"aliases": [
"CVE-2025-24477"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-15T09:15:22Z",
"severity": "MODERATE"
},
"details": "A heap-based buffer overflow in Fortinet FortiOS versions 7.6.0 through 7.6.2, 7.4.0 through 7.4.7, 7.2.4 through 7.2.11 allows an attacker to escalate its privileges via a specially crafted CLI command",
"id": "GHSA-36g4-wrrw-63fh",
"modified": "2025-07-15T09:30:26Z",
"published": "2025-07-15T09:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24477"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-026"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-36HM-H89F-CR4P
Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-62470"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-09T18:15:59Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-36hm-h89f-cr4p",
"modified": "2025-12-09T18:30:46Z",
"published": "2025-12-09T18:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62470"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62470"
}
],
"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-36JR-35R6-VP2P
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-11-11 18:30Illustrator on iPad versions 3.0.9 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.
{
"affected": [],
"aliases": [
"CVE-2025-61829"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T18:15:42Z",
"severity": "HIGH"
},
"details": "Illustrator on iPad versions 3.0.9 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-36jr-35r6-vp2p",
"modified": "2025-11-11T18:30:22Z",
"published": "2025-11-11T18:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61829"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/illustrator-mobile-ios/apsb25-111.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-36P3-3FQR-H7J4
Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-12 18:30Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2026-40403"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T18:17:18Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.",
"id": "GHSA-36p3-3fqr-h7j4",
"modified": "2026-05-12T18:30:45Z",
"published": "2026-05-12T18:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40403"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40403"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-36WM-HPRC-MCF5
Vulnerability from github – Published: 2026-05-18 20:36 – Updated: 2026-06-11 14:04When reading multiple images with different dimensions an out of bounds heap write can occur.
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
{
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{
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{
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],
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},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-x64"
},
"ranges": [
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"fixed": "14.13.1"
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{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-arm64"
},
"ranges": [
{
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{
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"fixed": "14.13.1"
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],
"type": "ECOSYSTEM"
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{
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"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x64"
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"ranges": [
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"fixed": "14.13.1"
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"type": "ECOSYSTEM"
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{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-x86"
},
"ranges": [
{
"events": [
{
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{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-AnyCPU"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-OpenMP-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-arm64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.13.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-46520"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-18T20:36:47Z",
"nvd_published_at": "2026-06-10T22:16:59Z",
"severity": "HIGH"
},
"details": "When reading multiple images with different dimensions an out of bounds heap write can occur.",
"id": "GHSA-36wm-hprc-mcf5",
"modified": "2026-06-11T14:04:54Z",
"published": "2026-05-18T20:36:47Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-36wm-hprc-mcf5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46520"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
}
],
"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"
}
],
"summary": "ImageMagick: Heap Buffer Over-Write in IPL decoder when reading multiple images of different dimensions"
}
GHSA-373G-HG3V-QF78
Vulnerability from github – Published: 2024-08-06 21:30 – Updated: 2024-08-07 00:30Heap buffer overflow in Layout in Google Chrome prior to 127.0.6533.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2024-7534"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-06T21:16:04Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Layout in Google Chrome prior to 127.0.6533.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-373g-hg3v-qf78",
"modified": "2024-08-07T00:30:47Z",
"published": "2024-08-06T21:30:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7534"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/08/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/352467338"
}
],
"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-3753-R5Q9-X6FX
Vulnerability from github – Published: 2024-10-02 18:31 – Updated: 2024-10-02 18:31A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to cause an unexpected reload of an affected device, resulting in a denial of service (DoS) condition. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device. This vulnerability is due to improper validation of user input that is in incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.
{
"affected": [],
"aliases": [
"CVE-2024-20522"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-02T17:15:19Z",
"severity": "MODERATE"
},
"details": "A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to cause an unexpected reload of an affected device, resulting in a denial of service (DoS) condition. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.\n\u0026nbsp;\nThis vulnerability is due to improper validation of user input that is in incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.",
"id": "GHSA-3753-r5q9-x6fx",
"modified": "2024-10-02T18:31:33Z",
"published": "2024-10-02T18:31:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-20522"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv04x_rv32x_vulns-yJ2OSDhV"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3763-G33M-VWCJ
Vulnerability from github – Published: 2024-11-12 21:30 – Updated: 2024-11-12 21:30Illustrator versions 28.7.1 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.
{
"affected": [],
"aliases": [
"CVE-2024-47450"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-12T19:15:14Z",
"severity": "HIGH"
},
"details": "Illustrator versions 28.7.1 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-3763-g33m-vwcj",
"modified": "2024-11-12T21:30:53Z",
"published": "2024-11-12T21:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47450"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/illustrator/apsb24-87.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-376C-J8F6-2FFF
Vulnerability from github – Published: 2026-07-30 21:31 – Updated: 2026-07-30 21:31In schreibfaul1 ESP32-audioI2S 3.4.5, a heap-based buffer overflow vulnerability exists in the latinToUTF8() character encoding conversion function. The function calculates required buffer size by simply doubling input length and reallocates ps_ptr heap buffer without strict boundary validation. Malicious oversized input can trigger insufficient buffer allocation and out-of-bounds write during Latin-1 to UTF-8 conversion, leading to code execution, information disclosure, denial of service or privilege escalation.
{
"affected": [],
"aliases": [
"CVE-2026-51272"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-30T19:18:05Z",
"severity": "CRITICAL"
},
"details": "In schreibfaul1 ESP32-audioI2S 3.4.5, a heap-based buffer overflow vulnerability exists in the latinToUTF8() character encoding conversion function. The function calculates required buffer size by simply doubling input length and reallocates ps_ptr heap buffer without strict boundary validation. Malicious oversized input can trigger insufficient buffer allocation and out-of-bounds write during Latin-1 to UTF-8 conversion, leading to code execution, information disclosure, denial of service or privilege escalation.",
"id": "GHSA-376c-j8f6-2fff",
"modified": "2026-07-30T21:31:49Z",
"published": "2026-07-30T21:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-51272"
},
{
"type": "WEB",
"url": "https://gist.github.com/programmervuln/5d1388bb85dfaf2e7e2700c5a2bceef5"
},
{
"type": "WEB",
"url": "https://github.com/schreibfaul1/ESP32-audioI2S/blob/master/src/Audio.cpp"
}
],
"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
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation MIT-10
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
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
Implement and perform bounds checking on input.
Mitigation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
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.