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().
4094 vulnerabilities reference this CWE, most recent first.
GHSA-XQ6V-X2F5-R47X
Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-12 18:30Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-42896"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T18:17:26Z",
"severity": "HIGH"
},
"details": "Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-xq6v-x2f5-r47x",
"modified": "2026-05-12T18:30:47Z",
"published": "2026-05-12T18:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42896"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42896"
}
],
"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-XQJP-6X3W-8653
Vulnerability from github – Published: 2025-06-10 18:32 – Updated: 2025-06-10 18:32Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
{
"affected": [],
"aliases": [
"CVE-2025-47162"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-10T17:23:26Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.",
"id": "GHSA-xqjp-6x3w-8653",
"modified": "2025-06-10T18:32:30Z",
"published": "2025-06-10T18:32:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47162"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47162"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XRCM-JR5X-65VM
Vulnerability from github – Published: 2023-11-23 06:30 – Updated: 2023-11-30 18:31A maliciously crafted PRT file when parsed through Autodesk AutoCAD 2024 and 2023 can be used to cause a Heap-Based Buffer Overflow. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2023-41140"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-23T04:15:07Z",
"severity": "HIGH"
},
"details": "A maliciously crafted PRT file when parsed through Autodesk AutoCAD 2024 and 2023 can be used to cause a Heap-Based Buffer Overflow. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the context of the current process.\n",
"id": "GHSA-xrcm-jr5x-65vm",
"modified": "2023-11-30T18:31:16Z",
"published": "2023-11-23T06:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41140"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/trust/security-advisories/adsk-sa-2023-0018"
}
],
"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-XRX8-F378-FWPH
Vulnerability from github – Published: 2024-09-17 21:30 – Updated: 2024-09-18 18:30Inappropriate implementation in V8 in Google Chrome prior to 129.0.6668.58 allowed a remote attacker to potentially exploit stack corruption via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2024-8905"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-09-17T21:15:13Z",
"severity": "HIGH"
},
"details": "Inappropriate implementation in V8 in Google Chrome prior to 129.0.6668.58 allowed a remote attacker to potentially exploit stack corruption via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-xrx8-f378-fwph",
"modified": "2024-09-18T18:30:51Z",
"published": "2024-09-17T21:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8905"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/09/stable-channel-update-for-desktop_17.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/359949835"
}
],
"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-XV3H-PCQM-3253
Vulnerability from github – Published: 2025-02-07 09:31 – Updated: 2025-02-07 09:31Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. If a target visits a malicious page or opens a malicious file an attacker can leverage this vulnerability to execute code in the context of the current process.
{
"affected": [],
"aliases": [
"CVE-2025-22880"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-07T08:15:28Z",
"severity": "HIGH"
},
"details": "Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. If a target visits a malicious page or opens a malicious file an attacker can leverage this vulnerability to execute code in the context of the current process.",
"id": "GHSA-xv3h-pcqm-3253",
"modified": "2025-02-07T09:31:51Z",
"published": "2025-02-07T09:31:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22880"
},
{
"type": "WEB",
"url": "https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2025-00002_CNCSoft-G2%20-%20Heap-based%20Buffer%20Overflow_v1.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-XV59-967R-8726
Vulnerability from github – Published: 2026-05-07 22:33 – Updated: 2026-05-15 23:46CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced.
This only impacts users using AES key-wrap-with-padding ciphers.
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "openssl"
},
"ranges": [
{
"events": [
{
"introduced": "0.10.0"
},
{
"fixed": "0.10.79"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-44662"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2026-05-07T22:33:51Z",
"nvd_published_at": "2026-05-14T21:16:47Z",
"severity": "MODERATE"
},
"details": "`CipherCtxRef::cipher_update`, `CipherCtxRef::cipher_update_vec`, and `symm::Crypter::update` incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (`EVP_aes_{128,192,256}_wrap_pad`). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller\u0027s buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced.\n\nThis only impacts users using AES key-wrap-with-padding ciphers.",
"id": "GHSA-xv59-967r-8726",
"modified": "2026-05-15T23:46:02Z",
"published": "2026-05-07T22:33:51Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xv59-967r-8726"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44662"
},
{
"type": "PACKAGE",
"url": "https://github.com/rust-openssl/rust-openssl"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "rust-openssl vulnerable to heap buffer overflow when encrypting with AES key-wrap-with-padding"
}
GHSA-XVFM-VCFX-8599
Vulnerability from github – Published: 2026-03-25 03:31 – Updated: 2026-03-25 21:30The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.
{
"affected": [],
"aliases": [
"CVE-2026-28842"
],
"database_specific": {
"cwe_ids": [
"CWE-120",
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T01:17:09Z",
"severity": "HIGH"
},
"details": "The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.",
"id": "GHSA-xvfm-vcfx-8599",
"modified": "2026-03-25T21:30:30Z",
"published": "2026-03-25T03:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28842"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/126794"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XVJF-PPXC-MVVQ
Vulnerability from github – Published: 2023-03-27 21:30 – Updated: 2023-03-27 21:30Adobe Substance 3D Stager versions 2.0.0 (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-2023-25874"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-27T21:15:00Z",
"severity": "HIGH"
},
"details": "Adobe Substance 3D Stager versions 2.0.0 (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-xvjf-ppxc-mvvq",
"modified": "2023-03-27T21:30:24Z",
"published": "2023-03-27T21:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25874"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/substance3d_stager/apsb23-22.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-XW2Q-5WQ4-7MX8
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30Heap-based buffer overflow in Microsoft Windows DNS allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-41108"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:06Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Microsoft Windows DNS allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-xw2q-5wq4-7mx8",
"modified": "2026-06-09T18:30:43Z",
"published": "2026-06-09T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41108"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41108"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-XW97-MFVW-WC3W
Vulnerability from github – Published: 2024-05-07 21:31 – Updated: 2024-07-03 18:39In multiple locations, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2024-23709"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-07T21:15:08Z",
"severity": "MODERATE"
},
"details": "In multiple locations, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.",
"id": "GHSA-xw97-mfvw-wc3w",
"modified": "2024-07-03T18:39:48Z",
"published": "2024-05-07T21:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23709"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/external/sonivox/+/3f798575d2d39cd190797427d13471d6e7ceae4c"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2024-05-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"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.