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().
4189 vulnerabilities reference this CWE, most recent first.
GHSA-7PWV-Q23J-CJJF
Vulnerability from github – Published: 2024-08-06 00:31 – Updated: 2024-08-06 00:31oFono SimToolKit Heap-based Buffer Overflow Privilege Escalation Vulnerability. This vulnerability allows local attackers to execute arbitrary code on affected installations of oFono. An attacker must first obtain the ability to execute code on the target modem in order to exploit this vulnerability.
The specific flaw exists within the parsing of STK command PDUs. 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 service account. Was ZDI-CAN-23457.
{
"affected": [],
"aliases": [
"CVE-2024-7544"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-06T00:15:36Z",
"severity": "HIGH"
},
"details": "oFono SimToolKit Heap-based Buffer Overflow Privilege Escalation Vulnerability. This vulnerability allows local attackers to execute arbitrary code on affected installations of oFono. An attacker must first obtain the ability to execute code on the target modem in order to exploit this vulnerability.\n\nThe specific flaw exists within the parsing of STK command PDUs. 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 service account. Was ZDI-CAN-23457.",
"id": "GHSA-7pwv-q23j-cjjf",
"modified": "2024-08-06T00:31:22Z",
"published": "2024-08-06T00:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7544"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1084"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7Q2G-J3R8-HGWH
Vulnerability from github – Published: 2024-08-12 15:30 – Updated: 2024-08-12 15:30A vulnerability, which was classified as critical, was found in FFmpeg up to 5.1.5. This affects the function fill_audiodata of the file /libswresample/swresample.c. The manipulation leads to heap-based buffer overflow. It is possible to initiate the attack remotely. This issue was fixed in version 6.0 by 9903ba28c28ab18dc7b7b6fb8571cc8b5caae1a6 but a backport for 5.1 was forgotten. The exploit has been disclosed to the public and may be used. Upgrading to version 5.1.6 and 6.0 9903ba28c28ab18dc7b7b6fb8571cc8b5caae1a6 is able to address this issue. It is recommended to upgrade the affected component.
{
"affected": [],
"aliases": [
"CVE-2024-7272"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-12T13:38:40Z",
"severity": "MODERATE"
},
"details": "A vulnerability, which was classified as critical, was found in FFmpeg up to 5.1.5. This affects the function fill_audiodata of the file /libswresample/swresample.c. The manipulation leads to heap-based buffer overflow. It is possible to initiate the attack remotely. This issue was fixed in version 6.0 by 9903ba28c28ab18dc7b7b6fb8571cc8b5caae1a6 but a backport for 5.1 was forgotten. The exploit has been disclosed to the public and may be used. Upgrading to version 5.1.6 and 6.0 9903ba28c28ab18dc7b7b6fb8571cc8b5caae1a6 is able to address this issue. It is recommended to upgrade the affected component.",
"id": "GHSA-7q2g-j3r8-hgwh",
"modified": "2024-08-12T15:30:51Z",
"published": "2024-08-12T15:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7272"
},
{
"type": "WEB",
"url": "https://ffmpeg.org"
},
{
"type": "WEB",
"url": "https://github.com/CookedMelon/ReportCVE/tree/main/FFmpeg/poc5"
},
{
"type": "WEB",
"url": "https://github.com/CookedMelon/ReportCVE/tree/main/FFmpeg/poc6"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.273945"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.273945"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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-7Q38-VQQ7-45C9
Vulnerability from github – Published: 2025-12-24 00:30 – Updated: 2025-12-24 00:30Academy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Academy Software Foundation OpenEXR. 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 EXR 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-27947.
{
"affected": [],
"aliases": [
"CVE-2025-12839"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-23T22:15:44Z",
"severity": "HIGH"
},
"details": "Academy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Academy Software Foundation OpenEXR. 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 EXR 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-27947.",
"id": "GHSA-7q38-vqq7-45c9",
"modified": "2025-12-24T00:30:13Z",
"published": "2025-12-24T00:30:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12839"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-990"
}
],
"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-7Q3F-Q9MP-P2F9
Vulnerability from github – Published: 2025-12-31 09:30 – Updated: 2025-12-31 09:30FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. 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 SFD 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 user. Was ZDI-CAN-28547.
{
"affected": [],
"aliases": [
"CVE-2025-15272"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-31T07:15:51Z",
"severity": "HIGH"
},
"details": "FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. 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 SFD 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 user. Was ZDI-CAN-28547.",
"id": "GHSA-7q3f-q9mp-p2f9",
"modified": "2025-12-31T09:30:18Z",
"published": "2025-12-31T09:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15272"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-1192"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-7QCX-J2PX-V82H
Vulnerability from github – Published: 2022-02-15 00:03 – Updated: 2022-03-18 00:01Heap-based Buffer Overflow in Conda vim prior to 8.2.
{
"affected": [],
"aliases": [
"CVE-2022-0407"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-30T14:15:00Z",
"severity": "HIGH"
},
"details": "Heap-based Buffer Overflow in Conda vim prior to 8.2.",
"id": "GHSA-7qcx-j2px-v82h",
"modified": "2022-03-18T00:01:34Z",
"published": "2022-02-15T00:03:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0407"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/44db8213d38c39877d2148eff6a72f4beccfb94e"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/81822bf7-aafe-4d37-b836-1255d46e572c"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
}
],
"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-7QGP-Q3FG-4C39
Vulnerability from github – Published: 2025-02-19 00:31 – Updated: 2025-02-20 00:32A heap buffer overflow vulnerability in FFmpeg before commit 4bf784c allows attackers to trigger a memory corruption via supplying a crafted media file in avformat when processing tile grid group streams. This can lead to a Denial of Service (DoS).
{
"affected": [],
"aliases": [
"CVE-2025-22920"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-18T23:15:10Z",
"severity": "MODERATE"
},
"details": "A heap buffer overflow vulnerability in FFmpeg before commit 4bf784c allows attackers to trigger a memory corruption via supplying a crafted media file in avformat when processing tile grid group streams. This can lead to a Denial of Service (DoS).",
"id": "GHSA-7qgp-q3fg-4c39",
"modified": "2025-02-20T00:32:03Z",
"published": "2025-02-19T00:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22920"
},
{
"type": "WEB",
"url": "https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/4bf784c0e5615c3f934e677d5de093a8be7da7ae"
},
{
"type": "WEB",
"url": "https://trac.ffmpeg.org/ticket/11389"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-7QJX-378M-P8HM
Vulnerability from github – Published: 2025-02-25 18:31 – Updated: 2026-06-02 06:30A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.
{
"affected": [],
"aliases": [
"CVE-2025-26597"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-25T16:15:38Z",
"severity": "HIGH"
},
"details": "A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.",
"id": "GHSA-7qjx-378m-p8hm",
"modified": "2026-06-02T06:30:25Z",
"published": "2025-02-25T18:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26597"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2345255"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2025-26597"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:7458"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:7165"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:7163"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:3976"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2880"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2879"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2875"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2874"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2873"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2866"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2865"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2862"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2861"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2502"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2025:2500"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/06/02/1"
}
],
"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-7QVP-9XW6-RPFP
Vulnerability from github – Published: 2025-01-14 18:32 – Updated: 2025-01-14 18:32Visual Studio Remote Code Execution Vulnerability
{
"affected": [],
"aliases": [
"CVE-2025-21178"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-14T18:15:30Z",
"severity": "HIGH"
},
"details": "Visual Studio Remote Code Execution Vulnerability",
"id": "GHSA-7qvp-9xw6-rpfp",
"modified": "2025-01-14T18:32:02Z",
"published": "2025-01-14T18:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21178"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21178"
}
],
"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-7R38-W8XJ-F2X5
Vulnerability from github – Published: 2025-09-05 18:31 – Updated: 2025-09-05 18:31In multiple functions of NdkMediaCodec.cpp, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2025-26455"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-04T18:15:45Z",
"severity": "HIGH"
},
"details": "In multiple functions of NdkMediaCodec.cpp, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-7r38-w8xj-f2x5",
"modified": "2025-09-05T18:31:18Z",
"published": "2025-09-05T18:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-26455"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/frameworks/av/+/e28ca0c3d70c67cda2a09dc2d663a3395b13c779"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2025-06-01"
}
],
"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-7R6Q-467Q-XX63
Vulnerability from github – Published: 2026-04-14 21:31 – Updated: 2026-04-14 21:31Bridge versions 16.0.2, 15.1.4 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-2026-27313"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T20:16:34Z",
"severity": "HIGH"
},
"details": "Bridge versions 16.0.2, 15.1.4 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-7r6q-467q-xx63",
"modified": "2026-04-14T21:31:48Z",
"published": "2026-04-14T21:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27313"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/bridge/apsb26-39.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"
}
]
}
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.