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().
5247 vulnerabilities reference this CWE, most recent first.
GHSA-QFRC-4462-RGHV
Vulnerability from github – Published: 2026-08-20 00:35 – Updated: 2026-08-20 00:35Catapult DCT2000 file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
{
"affected": [],
"aliases": [
"CVE-2026-76883"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-19T23:16:19Z",
"severity": "MODERATE"
},
"details": "Catapult DCT2000 file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service",
"id": "GHSA-qfrc-4462-rghv",
"modified": "2026-08-20T00:35:09Z",
"published": "2026-08-20T00:35:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76883"
},
{
"type": "WEB",
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21427"
},
{
"type": "WEB",
"url": "https://www.wireshark.org/security/wnpa-sec-2026-74.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QG72-3QRW-JCXV
Vulnerability from github – Published: 2026-09-03 18:31 – Updated: 2026-09-03 18:31Substance3D - Sampler is 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-2026-83959"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-03T18:17:24Z",
"severity": "HIGH"
},
"details": "Substance3D - Sampler is 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-qg72-3qrw-jcxv",
"modified": "2026-09-03T18:31:51Z",
"published": "2026-09-03T18:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-83959"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/substance3d-sampler/apsb26-121.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-QG97-XP64-P6PC
Vulnerability from github – Published: 2025-04-16 21:30 – Updated: 2025-04-17 15:32Heap buffer overflow in Codecs in Google Chrome on Windows prior to 135.0.7049.95 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)
{
"affected": [],
"aliases": [
"CVE-2025-3619"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T21:15:47Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Codecs in Google Chrome on Windows prior to 135.0.7049.95 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-qg97-xp64-p6pc",
"modified": "2025-04-17T15:32:35Z",
"published": "2025-04-16T21:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3619"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2025/04/stable-channel-update-for-desktop_15.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/409619251"
}
],
"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-QGG3-VPPQ-VR2Q
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-2026-34628"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T18:17:37Z",
"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-qgg3-vppq-vr2q",
"modified": "2026-04-14T18:30:43Z",
"published": "2026-04-14T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34628"
},
{
"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-QGGH-2GCM-JVJ8
Vulnerability from github – Published: 2025-03-11 18:32 – Updated: 2025-03-11 18:32Heap-based buffer overflow in Windows Telephony Server allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2025-24056"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T17:16:28Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Telephony Server allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-qggh-2gcm-jvj8",
"modified": "2025-03-11T18:32:17Z",
"published": "2025-03-11T18:32:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24056"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24056"
}
],
"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-QGM6-RXJ7-629Q
Vulnerability from github – Published: 2024-05-14 15:32 – Updated: 2024-08-16 18:30HDF5 through 1.14.3 contains a heap buffer overflow in H5HG_read, resulting in the corruption of the instruction pointer and causing denial of service or potential code execution.
{
"affected": [],
"aliases": [
"CVE-2024-29157"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-14T15:15:31Z",
"severity": "CRITICAL"
},
"details": "HDF5 through 1.14.3 contains a heap buffer overflow in H5HG_read, resulting in the corruption of the instruction pointer and causing denial of service or potential code execution.",
"id": "GHSA-qgm6-rxj7-629q",
"modified": "2024-08-16T18:30:56Z",
"published": "2024-05-14T15:32:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-29157"
},
{
"type": "WEB",
"url": "https://www.hdfgroup.org/2024/05/new-hdf5-cve-issues-fixed-in-1-14-4"
}
],
"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-QGV4-VPRJ-X2FQ
Vulnerability from github – Published: 2025-04-01 21:31 – Updated: 2025-04-04 21:30A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service.
{
"affected": [],
"aliases": [
"CVE-2025-29070"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-01T21:15:44Z",
"severity": "HIGH"
},
"details": "A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service.",
"id": "GHSA-qgv4-vprj-x2fq",
"modified": "2025-04-04T21:30:50Z",
"published": "2025-04-01T21:31:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29070"
},
{
"type": "WEB",
"url": "https://github.com/mm2/Little-CMS/issues/475"
},
{
"type": "WEB",
"url": "https://github.com/mm2/Little-CMS/issues/475#issuecomment-2696785063"
}
],
"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-QGW2-3V25-M63W
Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-69820"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T18:19:53Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-qgw2-3v25-m63w",
"modified": "2026-09-08T18:33:01Z",
"published": "2026-09-08T18:33:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-69820"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69820"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QGWQ-QGF3-3CRF
Vulnerability from github – Published: 2025-07-08 18:31 – Updated: 2025-07-08 18:31Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-49705"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-08T17:15:58Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.",
"id": "GHSA-qgwq-qgf3-3crf",
"modified": "2025-07-08T18:31:48Z",
"published": "2025-07-08T18:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49705"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49705"
}
],
"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-QH3X-7Q6P-6X7F
Vulnerability from github – Published: 2026-07-22 00:32 – Updated: 2026-08-13 15:34Autel Maxi Charger Single firmware through V1.03.51 contains a heap-based buffer overflow in the set_ap_param command handled by the /localcfg endpoint. An authenticated attacker can supply oversized input, resulting in denial of service and potentially arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2026-8987"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-21T22:19:11Z",
"severity": "CRITICAL"
},
"details": "Autel Maxi Charger Single firmware through V1.03.51 contains a heap-based buffer overflow in the set_ap_param command handled by the /localcfg endpoint. An authenticated attacker can supply oversized input, resulting in denial of service and potentially arbitrary code execution.",
"id": "GHSA-qh3x-7q6p-6x7f",
"modified": "2026-08-13T15:34:18Z",
"published": "2026-07-22T00:32:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8987"
},
{
"type": "WEB",
"url": "https://cyberdanube.com/security-research/multiple-vulnerabilities-in-autel-maxi-charger"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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.