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-729H-F868-G443
Vulnerability from github – Published: 2023-09-14 18:32 – Updated: 2023-11-14 12:30A vulnerability has been identified in JT2Go (All versions < V14.3.0.1), Teamcenter Visualization V13.3 (All versions < V13.3.0.12), Teamcenter Visualization V14.0 (All versions), Teamcenter Visualization V14.1 (All versions < V14.1.0.11), Teamcenter Visualization V14.2 (All versions < V14.2.0.6), Teamcenter Visualization V14.3 (All versions < V14.3.0.1). The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted WRL files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-20824)
{
"affected": [],
"aliases": [
"CVE-2023-38071"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-12T10:15:27Z",
"severity": "HIGH"
},
"details": "A vulnerability has been identified in JT2Go (All versions \u003c V14.3.0.1), Teamcenter Visualization V13.3 (All versions \u003c V13.3.0.12), Teamcenter Visualization V14.0 (All versions), Teamcenter Visualization V14.1 (All versions \u003c V14.1.0.11), Teamcenter Visualization V14.2 (All versions \u003c V14.2.0.6), Teamcenter Visualization V14.3 (All versions \u003c V14.3.0.1). The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted WRL files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-20824)",
"id": "GHSA-729h-f868-g443",
"modified": "2023-11-14T12:30:25Z",
"published": "2023-09-14T18:32:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38071"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-278349.pdf"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-478780.pdf"
}
],
"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-72H4-FJC8-XFM7
Vulnerability from github – Published: 2024-10-18 00:31 – Updated: 2024-10-18 00:31Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-43579"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-17T23:15:15Z",
"severity": "HIGH"
},
"details": "Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability",
"id": "GHSA-72h4-fjc8-xfm7",
"modified": "2024-10-18T00:31:16Z",
"published": "2024-10-18T00:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43579"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43579"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-72HG-72H4-39FG
Vulnerability from github – Published: 2022-01-11 00:00 – Updated: 2022-03-17 00:06{
"affected": [],
"aliases": [
"CVE-2022-0158"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-10T16:15:00Z",
"severity": "MODERATE"
},
"details": "vim is vulnerable to Heap-based Buffer Overflow",
"id": "GHSA-72hg-72h4-39fg",
"modified": "2022-03-17T00:06:15Z",
"published": "2022-01-11T00:00:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0158"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/5f25c3855071bd7e26255c68bf458b1b5cf92f39"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/ac5d7005-07c6-4a0a-b251-ba9cdbf6738b"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HD5S2FC2HF22A7XQXK2XXIR46EARVWIM"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213183"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213344"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Jul/13"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Mar/29"
},
{
"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:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-72Q3-GVH6-6M6W
Vulnerability from github – Published: 2024-09-17 18:33 – Updated: 2025-10-22 00:33The vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution.
{
"affected": [],
"aliases": [
"CVE-2024-38812"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-17T18:15:03Z",
"severity": "CRITICAL"
},
"details": "The\u00a0vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol.\u00a0A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution.",
"id": "GHSA-72q3-gvh6-6m6w",
"modified": "2025-10-22T00:33:06Z",
"published": "2024-09-17T18:33:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38812"
},
{
"type": "WEB",
"url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24968"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38812"
}
],
"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-72R6-P2X3-G9GJ
Vulnerability from github – Published: 2026-03-17 00:31 – Updated: 2026-06-30 03:35YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter.
The heap overflow occurs when class names exceed the initial 512-byte allocation.
The base64 decoder could read past the buffer end on trailing newlines.
strtok mutated n->type_id in place, corrupting shared node data.
A memory leak occurred in syck_hdlr_add_anchor when a node already had an anchor. The incoming anchor string 'a' was leaked on early return.
{
"affected": [],
"aliases": [
"CVE-2026-4177"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-16T23:16:21Z",
"severity": "CRITICAL"
},
"details": "YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter.\n\nThe heap overflow occurs when class names exceed the initial 512-byte allocation.\n\nThe base64 decoder could read past the buffer end on trailing newlines.\n\nstrtok mutated n-\u003etype_id in place, corrupting shared node data.\n\nA memory leak occurred in syck_hdlr_add_anchor when a node already had an anchor. The incoming anchor string \u0027a\u0027 was leaked on early return.",
"id": "GHSA-72r6-p2x3-g9gj",
"modified": "2026-06-30T03:35:55Z",
"published": "2026-03-17T00:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4177"
},
{
"type": "WEB",
"url": "https://github.com/cpan-authors/YAML-Syck/commit/e8844a31c8cf0052914b198fc784ed4e6b8ae69e.patch"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6470"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8311"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-4177"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448277"
},
{
"type": "WEB",
"url": "https://metacpan.org/release/TODDR/YAML-Syck-1.37_01/changes#L21"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4177.json"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/03/16/6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-73GG-QJFG-4G7X
Vulnerability from github – Published: 2025-04-08 21:31 – Updated: 2025-04-08 21:31Adobe Framemaker versions 2020.8, 2022.6 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-2025-30295"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-08T19:15:49Z",
"severity": "HIGH"
},
"details": "Adobe Framemaker versions 2020.8, 2022.6 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-73gg-qjfg-4g7x",
"modified": "2025-04-08T21:31:39Z",
"published": "2025-04-08T21:31:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30295"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/framemaker/apsb25-33.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-73JC-V74H-5W6R
Vulnerability from github – Published: 2026-04-06 18:33 – Updated: 2026-04-06 18:33Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.
{
"affected": [],
"aliases": [
"CVE-2026-21372"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-06T16:16:29Z",
"severity": "HIGH"
},
"details": "Memory Corruption when sending IOCTL requests with invalid buffer sizes during memcpy operations.",
"id": "GHSA-73jc-v74h-5w6r",
"modified": "2026-04-06T18:33:06Z",
"published": "2026-04-06T18:33:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21372"
},
{
"type": "WEB",
"url": "https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html"
}
],
"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-74JQ-5JMR-V9VC
Vulnerability from github – Published: 2024-04-03 18:30 – Updated: 2024-04-03 18:30Kofax Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22927.
{
"affected": [],
"aliases": [
"CVE-2024-27341"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-03T17:15:54Z",
"severity": "HIGH"
},
"details": "Kofax Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kofax Power PDF. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-22927.",
"id": "GHSA-74jq-5jmr-v9vc",
"modified": "2024-04-03T18:30:43Z",
"published": "2024-04-03T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27341"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-221"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-74QM-4V7R-JW2F
Vulnerability from github – Published: 2024-09-17 21:30 – Updated: 2024-09-25 18:23A vulnerability was found in MicroPython 1.23.0. It has been classified as critical. Affected is the function mp_vfs_umount of the file extmod/vfs.c of the component VFS Unmount Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 29943546343c92334e8518695a11fc0e2ceea68b. It is recommended to apply a patch to fix this issue. In the VFS unmount process, the comparison between the mounted path string and the unmount requested string is based solely on the length of the unmount string, which can lead to a heap buffer overflow read.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "micropython-copy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.3.3.post3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "micropython-io"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "micropython-os-path"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.1.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "micropython-string"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-8946"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2024-09-25T18:23:41Z",
"nvd_published_at": "2024-09-17T19:15:29Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in MicroPython 1.23.0. It has been classified as critical. Affected is the function mp_vfs_umount of the file extmod/vfs.c of the component VFS Unmount Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 29943546343c92334e8518695a11fc0e2ceea68b. It is recommended to apply a patch to fix this issue. In the VFS unmount process, the comparison between the mounted path string and the unmount requested string is based solely on the length of the unmount string, which can lead to a heap buffer overflow read.",
"id": "GHSA-74qm-4v7r-jw2f",
"modified": "2024-09-25T18:23:41Z",
"published": "2024-09-17T21:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8946"
},
{
"type": "WEB",
"url": "https://github.com/micropython/micropython/issues/13006"
},
{
"type": "WEB",
"url": "https://github.com/micropython/micropython/issues/13006#issuecomment-1820309455"
},
{
"type": "WEB",
"url": "https://github.com/micropython/micropython/commit/29943546343c92334e8518695a11fc0e2ceea68b"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/micropython-copy/PYSEC-2024-91.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/micropython-io/PYSEC-2024-93.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/micropython-os-path/PYSEC-2024-95.yaml"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/micropython-string/PYSEC-2024-96.yaml"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.277764"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.277764"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.409312"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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"
}
],
"summary": "Heap-based Buffer Overflow in MicroPython"
}
GHSA-74RP-5FX4-84M7
Vulnerability from github – Published: 2026-06-26 15:32 – Updated: 2026-06-26 18:33A heap overflow in the FSViewer.exe process of FastStone Image Viewer v8.3 allows attackers to cause a execute arbitrary code in the context of the current process via supplying a crafted JPEG 2000 (JP2) file.
{
"affected": [],
"aliases": [
"CVE-2026-30040"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-26T15:16:37Z",
"severity": "MODERATE"
},
"details": "A heap overflow in the FSViewer.exe process of FastStone Image Viewer v8.3 allows attackers to cause a execute arbitrary code in the context of the current process via supplying a crafted JPEG 2000 (JP2) file.",
"id": "GHSA-74rp-5fx4-84m7",
"modified": "2026-06-26T18:33:53Z",
"published": "2026-06-26T15:32:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30040"
},
{
"type": "WEB",
"url": "https://kb.cert.org/vuls/id/936962"
},
{
"type": "WEB",
"url": "https://www.faststone.org/FSIVDownload.htm"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"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.