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().
4106 vulnerabilities reference this CWE, most recent first.
GHSA-382V-76MX-PQX3
Vulnerability from github – Published: 2026-01-27 12:31 – Updated: 2026-01-27 12:31Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in Is-Daouda is-Engine.This issue affects is-Engine: before 3.3.4.
{
"affected": [],
"aliases": [
"CVE-2026-24829"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-27T10:15:49Z",
"severity": "MODERATE"
},
"details": "Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in Is-Daouda is-Engine.This issue affects is-Engine: before 3.3.4.",
"id": "GHSA-382v-76mx-pqx3",
"modified": "2026-01-27T12:31:18Z",
"published": "2026-01-27T12:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24829"
},
{
"type": "WEB",
"url": "https://github.com/Is-Daouda/is-Engine/pull/7"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-385J-3GWH-PJGR
Vulnerability from github – Published: 2023-04-11 21:31 – Updated: 2025-10-22 00:32Windows Common Log File System Driver Elevation of Privilege Vulnerability
{
"affected": [],
"aliases": [
"CVE-2023-28252"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-11T21:15:00Z",
"severity": "HIGH"
},
"details": "Windows Common Log File System Driver Elevation of Privilege Vulnerability",
"id": "GHSA-385j-3gwh-pjgr",
"modified": "2025-10-22T00:32:43Z",
"published": "2023-04-11T21:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28252"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28252"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28252"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/174668/Windows-Common-Log-File-System-Driver-clfs.sys-Privilege-Escalation.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-38G6-9FGR-3MMJ
Vulnerability from github – Published: 2026-04-14 18:30 – Updated: 2026-04-14 18:30InDesign Desktop versions 20.5.2, 21.2 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-2026-34627"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T18:17:36Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions 20.5.2, 21.2 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-38g6-9fgr-3mmj",
"modified": "2026-04-14T18:30:43Z",
"published": "2026-04-14T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34627"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb26-32.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-38J9-4VCR-J8QH
Vulnerability from github – Published: 2026-03-03 21:31 – Updated: 2026-03-05 00:31dr_libs version 0.14.4 and earlier (fixed in commit 8a7258c) contain a heap buffer overflow vulnerability in the drwav__read_smpl_to_metadata_obj() function of dr_wav.h that allows memory corruption via crafted WAV files. Attackers can exploit a mismatch between sampleLoopCount validation in pass 1 and unconditional processing in pass 2 to overflow heap allocations with 36 bytes of attacker-controlled data through any drwav_init_*_with_metadata() call on untrusted input.
{
"affected": [],
"aliases": [
"CVE-2026-29022"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-03T20:16:49Z",
"severity": "MODERATE"
},
"details": "dr_libs version 0.14.4 and earlier (fixed in commit 8a7258c) contain a heap buffer overflow vulnerability in the drwav__read_smpl_to_metadata_obj() function of dr_wav.h that allows memory corruption via crafted WAV files. Attackers can exploit a mismatch between sampleLoopCount validation in pass 1 and unconditional processing in pass 2 to overflow heap allocations with 36 bytes of attacker-controlled data through any drwav_init_*_with_metadata() call on untrusted input.",
"id": "GHSA-38j9-4vcr-j8qh",
"modified": "2026-03-05T00:31:10Z",
"published": "2026-03-03T21:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29022"
},
{
"type": "WEB",
"url": "https://github.com/mackron/dr_libs/issues/296"
},
{
"type": "WEB",
"url": "https://github.com/mackron/dr_libs/commit/8a7258cc66b49387ad58cc5b81568982a3560d49"
},
{
"type": "WEB",
"url": "https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2026-001-dr-libs-heap-overflow.md"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/mackron-dr-libs-heap-buffer-overflow-via-wav-file"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/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-38VH-57P3-W3GW
Vulnerability from github – Published: 2026-06-15 21:30 – Updated: 2026-07-09 09:30A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client). The rectangle bounds check incorrectly validates area rather than individual dimensions, allowing a malicious VNC server to send a rectangle that extends beyond the framebuffer. A remote attacker could set up a malicious VNC server and trick a user into connecting, resulting in an out-of-bounds heap write that could lead to code execution or a crash.
{
"affected": [],
"aliases": [
"CVE-2026-52720"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-15T20:16:32Z",
"severity": "HIGH"
},
"details": "A heap buffer overflow vulnerability was found in GStreamer\u0027s librfb (RFB/VNC client). The rectangle bounds check incorrectly validates area rather than individual dimensions, allowing a malicious VNC server to send a rectangle that extends beyond the framebuffer. A remote attacker could set up a malicious VNC server and trick a user into connecting, resulting in an out-of-bounds heap write that could lead to code execution or a crash.",
"id": "GHSA-38vh-57p3-w3gw",
"modified": "2026-07-09T09:30:27Z",
"published": "2026-06-15T21:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52720"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36749"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:36834"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:37130"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-52720"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486731"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5105"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52720.json"
}
],
"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-392Q-PC37-M552
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-47291"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:34Z",
"severity": "CRITICAL"
},
"details": "Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-392q-pc37-m552",
"modified": "2026-06-09T18:30:54Z",
"published": "2026-06-09T18:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47291"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47291"
}
],
"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-395V-M46G-95RQ
Vulnerability from github – Published: 2022-09-17 00:00 – Updated: 2022-09-17 00:00Adobe InCopy version 17.3 (and earlier) and 16.4.2 (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-2022-38405"
],
"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 InCopy version 17.3 (and earlier) and 16.4.2 (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-395v-m46g-95rq",
"modified": "2022-09-17T00:00:32Z",
"published": "2022-09-17T00:00:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38405"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/incopy/apsb22-53.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-39G8-P82F-45MX
Vulnerability from github – Published: 2026-04-15 00:31 – Updated: 2026-04-15 00:31Adobe Framemaker versions 2022.8 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2026-27301"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T23:16:27Z",
"severity": "MODERATE"
},
"details": "Adobe Framemaker versions 2022.8 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive information stored in memory. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-39g8-p82f-45mx",
"modified": "2026-04-15T00:31:35Z",
"published": "2026-04-15T00:31:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27301"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/framemaker/apsb26-36.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-39H3-XP4V-MC8C
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-50484"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:17:54Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-39h3-xp4v-mc8c",
"modified": "2026-07-14T18:32:27Z",
"published": "2026-07-14T18:32:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50484"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50484"
}
],
"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-39JR-VP8F-X2QG
Vulnerability from github – Published: 2025-08-25 15:32 – Updated: 2025-11-03 21:34A heap-based buffer overflow vulnerability exists in the RHS2000 parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted RHS2000 file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2025-48005"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-25T14:15:31Z",
"severity": "CRITICAL"
},
"details": "A heap-based buffer overflow vulnerability exists in the RHS2000 parsing functionality of The Biosig Project libbiosig 3.9.0 and Master Branch (35a819fa). A specially crafted RHS2000 file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.",
"id": "GHSA-39jr-vp8f-x2qg",
"modified": "2025-11-03T21:34:23Z",
"published": "2025-08-25T15:32:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48005"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2240"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2240"
}
],
"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.