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().
4149 vulnerabilities reference this CWE, most recent first.
GHSA-6P29-3X2M-XPVW
Vulnerability from github – Published: 2022-05-24 19:16 – Updated: 2022-05-24 19:16Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve 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-2021-39863"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-29T16:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve 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-6p29-3x2m-xpvw",
"modified": "2022-05-24T19:16:02Z",
"published": "2022-05-24T19:16:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39863"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-6P2P-GC4G-Q7J7
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-49732"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:16:01Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-6p2p-gc4g-q7j7",
"modified": "2025-07-08T18:31:51Z",
"published": "2025-07-08T18:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49732"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49732"
}
],
"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-6P5F-2V3F-HH8G
Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-12 18:30Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-40407"
],
"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 Common Log File System Driver allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-6p5f-2v3f-hh8g",
"modified": "2026-05-12T18:30:45Z",
"published": "2026-05-12T18:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40407"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40407"
}
],
"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-6P64-86QJ-33GC
Vulnerability from github – Published: 2026-03-19 21:30 – Updated: 2026-03-26 21:31An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written out of bounds of an insufficiently sized certificate buffer. wolfssl_add_to_chain is called by these API: wolfSSL_CTX_add_extra_chain_cert, wolfSSL_CTX_add1_chain_cert, wolfSSL_add0_chain_cert. These API are enabled for 3rd party compatibility features: enable-opensslall, enable-opensslextra, enable-lighty, enable-stunnel, enable-nginx, enable-haproxy. This issue is not remotely exploitable, and would require that the application context loading certificates is compromised.
{
"affected": [],
"aliases": [
"CVE-2026-3229"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-19T21:17:12Z",
"severity": "LOW"
},
"details": "An integer overflow vulnerability existed in the static function wolfssl_add_to_chain, that caused heap corruption when certificate data was written out of bounds of an insufficiently sized certificate buffer. wolfssl_add_to_chain is called by these API: wolfSSL_CTX_add_extra_chain_cert, wolfSSL_CTX_add1_chain_cert, wolfSSL_add0_chain_cert. These API are enabled for 3rd party compatibility features: enable-opensslall, enable-opensslextra, enable-lighty, enable-stunnel, enable-nginx, enable-haproxy. This issue is not remotely exploitable, and would require that the application context loading certificates is compromised.",
"id": "GHSA-6p64-86qj-33gc",
"modified": "2026-03-26T21:31:19Z",
"published": "2026-03-19T21:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3229"
},
{
"type": "WEB",
"url": "https://github.com/wolfSSL/wolfssl/pull/9827"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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:Green",
"type": "CVSS_V4"
}
]
}
GHSA-6P69-V349-83RH
Vulnerability from github – Published: 2026-05-01 00:31 – Updated: 2026-06-30 03:36RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
{
"affected": [],
"aliases": [
"CVE-2026-5405"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-01T00:16:24Z",
"severity": "HIGH"
},
"details": "RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution",
"id": "GHSA-6p69-v349-83rh",
"modified": "2026-06-30T03:36:28Z",
"published": "2026-05-01T00:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5405"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:20600"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:26182"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-5405"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464273"
},
{
"type": "WEB",
"url": "https://gitlab.com/wireshark/wireshark/-/issues/21105"
},
{
"type": "WEB",
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21105"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5405.json"
},
{
"type": "WEB",
"url": "https://www.wireshark.org/security/wnpa-sec-2026-17.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-6PP6-5H3Q-MGG3
Vulnerability from github – Published: 2025-05-14 21:31 – Updated: 2025-05-14 21:31IBM Semeru Runtime 8.0.302.0 through 8.0.442.0, 11.0.12.0 through 11.0.26.0, 17.0.0.0 through 17.0.14.0, and 21.0.0.0 through 12.0.6.0 is vulnerable to a denial of service caused by a buffer overflow and subsequent crash, due to a defect in its native AES/CBC encryption implementation.
{
"affected": [],
"aliases": [
"CVE-2025-2900"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-14T19:15:52Z",
"severity": "HIGH"
},
"details": "IBM Semeru Runtime 8.0.302.0 through 8.0.442.0, 11.0.12.0 through 11.0.26.0, 17.0.0.0 through 17.0.14.0, and 21.0.0.0 through 12.0.6.0 is vulnerable to a denial of service caused by a buffer overflow and subsequent crash, due to a defect in its native AES/CBC encryption implementation.",
"id": "GHSA-6pp6-5h3q-mgg3",
"modified": "2025-05-14T21:31:18Z",
"published": "2025-05-14T21:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2900"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7233415"
}
],
"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-6PPF-H643-Q5FW
Vulnerability from github – Published: 2022-09-17 00:00 – Updated: 2022-09-17 00:00Adobe InDesign versions 16.4.2 (and earlier) and 17.3 (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-2022-38414"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-16T18:15:00Z",
"severity": "HIGH"
},
"details": "Adobe InDesign versions 16.4.2 (and earlier) and 17.3 (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-6ppf-h643-q5fw",
"modified": "2022-09-17T00:00:32Z",
"published": "2022-09-17T00:00:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38414"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb22-50.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-6PQM-MCCV-6977
Vulnerability from github – Published: 2025-10-29 21:30 – Updated: 2025-11-03 18:31GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. 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 HDR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27803.
{
"affected": [],
"aliases": [
"CVE-2025-10921"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-29T20:15:34Z",
"severity": "HIGH"
},
"details": "GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. 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 HDR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27803.",
"id": "GHSA-6pqm-mccv-6977",
"modified": "2025-11-03T18:31:51Z",
"published": "2025-10-29T21:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10921"
},
{
"type": "WEB",
"url": "https://gitlab.gnome.org/GNOME/gegl/-/commit/0e68b7471dabf2800d780819c19bd5e6462f565f"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00021.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-910"
}
],
"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-6Q5P-RP5C-WMPH
Vulnerability from github – Published: 2024-03-07 03:30 – Updated: 2024-08-27 21:31zlog 1.2.16 has a heap-based buffer overflow in struct zlog_rule_s while creating a new rule that is already defined in the provided configuration file. A regular user can achieve arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2024-22857"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-07T01:15:52Z",
"severity": "CRITICAL"
},
"details": "zlog 1.2.16 has a heap-based buffer overflow in struct zlog_rule_s while creating a new rule that is already defined in the provided configuration file. A regular user can achieve arbitrary code execution.",
"id": "GHSA-6q5p-rp5c-wmph",
"modified": "2024-08-27T21:31:10Z",
"published": "2024-03-07T03:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-22857"
},
{
"type": "WEB",
"url": "https://github.com/HardySimpson/zlog/pull/251"
},
{
"type": "WEB",
"url": "https://github.com/HardySimpson/zlog"
},
{
"type": "WEB",
"url": "https://github.com/HardySimpson/zlog/blob/1a7b1a6fb956b92a4079ccc91f30da21f34ca063/src/rule.h#L30"
},
{
"type": "WEB",
"url": "https://www.cybersecurity-help.cz/vdb/SB2024022842"
},
{
"type": "WEB",
"url": "https://www.ebryx.com/blogs/arbitrary-code-execution-in-zlog-cve-2024-22857"
}
],
"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-6QJ8-GW6P-HC5P
Vulnerability from github – Published: 2026-06-09 21:32 – Updated: 2026-06-09 21:32SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database.
{
"affected": [],
"aliases": [
"CVE-2026-11822"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T20:16:32Z",
"severity": "HIGH"
},
"details": "SQLite before 3.53.2 contains memory corruption vulnerabilities in the FTS5 full-text search extension that allow attackers to cause process crashes, memory exhaustion, or arbitrary code execution by supplying a crafted database with malformed FTS5 page data. Attackers can trigger an out-of-bounds read in fts5LeafSeek() via an attacker-controlled loop bound and a heap buffer overflow write in fts5ChunkIterate() through a crafted continuation page causing an integer underflow, exploitable when an FTS5 MATCH query is executed against the malicious database.",
"id": "GHSA-6qj8-gw6p-hc5p",
"modified": "2026-06-09T21:32:36Z",
"published": "2026-06-09T21:32:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11822"
},
{
"type": "WEB",
"url": "https://sqlite.org/releaselog/3_53_2.html"
},
{
"type": "WEB",
"url": "https://sqlite.org/src/info/061febcf41ca"
},
{
"type": "WEB",
"url": "https://sqlite.org/src/info/4a5ad516ea93"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/sqlite-before-memory-corruption-in-fts5-extension"
}
],
"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:P/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"
}
]
}
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.