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-MR2M-75HP-M2F7
Vulnerability from github – Published: 2024-06-20 21:31 – Updated: 2024-06-20 21:31Parallels Desktop Toolgate Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability.
The specific flaw exists within the Toolgate component. 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 escalate privileges and execute arbitrary code in the context of the current user on the host system. Was ZDI-CAN-20450.
{
"affected": [],
"aliases": [
"CVE-2024-6154"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-20T20:15:21Z",
"severity": "HIGH"
},
"details": "Parallels Desktop Toolgate Heap-based Buffer Overflow Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Toolgate component. 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 escalate privileges and execute arbitrary code in the context of the current user on the host system. Was ZDI-CAN-20450.",
"id": "GHSA-mr2m-75hp-m2f7",
"modified": "2024-06-20T21:31:45Z",
"published": "2024-06-20T21:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-6154"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-804"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MRJW-2VH7-3RF9
Vulnerability from github – Published: 2024-07-09 18:30 – Updated: 2024-07-09 18:30SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-37327"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-09T17:15:21Z",
"severity": "HIGH"
},
"details": "SQL Server Native Client OLE DB Provider Remote Code Execution Vulnerability",
"id": "GHSA-mrjw-2vh7-3rf9",
"modified": "2024-07-09T18:30:50Z",
"published": "2024-07-09T18:30:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37327"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-37327"
}
],
"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-MRMP-MWVP-CMCX
Vulnerability from github – Published: 2025-08-26 00:31 – Updated: 2025-11-03 21:34A memory corruption vulnerability exists in the PCX Image Decoding functionality of the SAIL Image Decoding Library v0.9.8. When decoding the image data from a specially crafted .pcx file, a heap-based buffer overflow can occur which allows for remote code execution. An attacker will need to convince the library to read a file to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2025-35984"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-25T15:15:39Z",
"severity": "HIGH"
},
"details": "A memory corruption vulnerability exists in the PCX Image Decoding functionality of the SAIL Image Decoding Library v0.9.8. When decoding the image data from a specially crafted .pcx file, a heap-based buffer overflow can occur which allows for remote code execution. An attacker will need to convince the library to read a file to trigger this vulnerability.",
"id": "GHSA-mrmp-mwvp-cmcx",
"modified": "2025-11-03T21:34:24Z",
"published": "2025-08-26T00:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-35984"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2025-2217"
},
{
"type": "WEB",
"url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2217"
}
],
"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-MRR3-F59G-2946
Vulnerability from github – Published: 2022-05-24 19:09 – Updated: 2026-05-29 15:30CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.
{
"affected": [],
"aliases": [
"CVE-2021-33485"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-03T16:15:00Z",
"severity": "CRITICAL"
},
"details": "CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.",
"id": "GHSA-mrr3-f59g-2946",
"modified": "2026-05-29T15:30:24Z",
"published": "2022-05-24T19:09:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33485"
},
{
"type": "WEB",
"url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=14805\u0026token=f0b86f99bb302ddd4aadec483aed5f5d3fddbf1a\u0026download="
}
],
"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-MRXH-R27F-FJGJ
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-59255"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T17:16:07Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-mrxh-r27f-fjgj",
"modified": "2025-10-14T18:30:35Z",
"published": "2025-10-14T18:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59255"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59255"
}
],
"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-MRXR-G8PQ-3495
Vulnerability from github – Published: 2024-11-12 18:30 – Updated: 2024-11-12 18:30SQL Server Native Client Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-48995"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-12T18:15:36Z",
"severity": "HIGH"
},
"details": "SQL Server Native Client Remote Code Execution Vulnerability",
"id": "GHSA-mrxr-g8pq-3495",
"modified": "2024-11-12T18:30:59Z",
"published": "2024-11-12T18:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48995"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-48995"
}
],
"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-MVF4-PJ98-2R3V
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.
{
"affected": [],
"aliases": [
"CVE-2026-50668"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:00Z",
"severity": "MODERATE"
},
"details": "Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.",
"id": "GHSA-mvf4-pj98-2r3v",
"modified": "2026-07-14T18:32:29Z",
"published": "2026-07-14T18:32:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50668"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50668"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MVGC-43G2-23JM
Vulnerability from github – Published: 2023-04-13 00:30 – Updated: 2023-04-13 00:30Adobe Substance 3D Stager version 2.0.1 (and earlier) 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-2023-26394"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-12T22:15:00Z",
"severity": "HIGH"
},
"details": "Adobe Substance 3D Stager version 2.0.1 (and earlier) 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-mvgc-43g2-23jm",
"modified": "2023-04-13T00:30:49Z",
"published": "2023-04-13T00:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26394"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/substance3d_stager/apsb23-26.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-MVW5-R6WQ-28CM
Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-08 18:33Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-38212"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-08T18:15:07Z",
"severity": "HIGH"
},
"details": "Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability",
"id": "GHSA-mvw5-r6wq-28cm",
"modified": "2024-10-08T18:33:14Z",
"published": "2024-10-08T18:33:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38212"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38212"
}
],
"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-MW3W-F2GC-G47M
Vulnerability from github – Published: 2024-06-18 06:30 – Updated: 2024-06-18 06:30vCenter 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-2024-37080"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-18T06:15:11Z",
"severity": "CRITICAL"
},
"details": "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.",
"id": "GHSA-mw3w-f2gc-g47m",
"modified": "2024-06-18T06:30:43Z",
"published": "2024-06-18T06:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-37080"
},
{
"type": "WEB",
"url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/24453"
}
],
"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.