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-3MR2-RF49-P7W4
Vulnerability from github – Published: 2026-06-09 15:32 – Updated: 2026-06-09 15:32A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.
{
"affected": [],
"aliases": [
"CVE-2026-11792"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T14:16:37Z",
"severity": "LOW"
},
"details": "A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.",
"id": "GHSA-3mr2-rf49-p7w4",
"modified": "2026-06-09T15:32:18Z",
"published": "2026-06-09T15:32:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11792"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHBA-2025:15534"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-11792"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484915"
},
{
"type": "WEB",
"url": "https://redhat.atlassian.net/browse/PSIRTSUPT-7600"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-3MV8-CW8P-37FV
Vulnerability from github – Published: 2026-01-13 21:31 – Updated: 2026-01-13 21:31InDesign Desktop versions 21.0, 19.5.5 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-2026-21277"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-13T19:16:25Z",
"severity": "HIGH"
},
"details": "InDesign Desktop versions 21.0, 19.5.5 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-3mv8-cw8p-37fv",
"modified": "2026-01-13T21:31:44Z",
"published": "2026-01-13T21:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21277"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/indesign/apsb26-02.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-3MXQ-JVX5-CJ48
Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2025-50162"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-12T18:15:33Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.",
"id": "GHSA-3mxq-jvx5-cj48",
"modified": "2025-08-12T18:31:31Z",
"published": "2025-08-12T18:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-50162"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-50162"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3P5H-985R-GW4G
Vulnerability from github – Published: 2026-04-15 21:30 – Updated: 2026-04-15 21:30Heap buffer overflow in Skia in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Critical)
{
"affected": [],
"aliases": [
"CVE-2026-6298"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-15T20:16:38Z",
"severity": "MODERATE"
},
"details": "Heap buffer overflow in Skia in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-3p5h-985r-gw4g",
"modified": "2026-04-15T21:30:18Z",
"published": "2026-04-15T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6298"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/495700484"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3P62-2P5C-MGQJ
Vulnerability from github – Published: 2024-04-02 18:31 – Updated: 2024-09-04 18:30An issue was discovered in Bento4 v1.6.0-641-2-g1529b83. There is a heap overflow in AP4_Dec3Atom::AP4_Dec3Atom at Ap4Dec3Atom.cpp, leading to a Denial of Service (DoS), as demonstrated by mp42aac.
{
"affected": [],
"aliases": [
"CVE-2024-30806"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-02T18:15:12Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in Bento4 v1.6.0-641-2-g1529b83. There is a heap overflow in AP4_Dec3Atom::AP4_Dec3Atom at Ap4Dec3Atom.cpp, leading to a Denial of Service (DoS), as demonstrated by mp42aac.",
"id": "GHSA-3p62-2p5c-mgqj",
"modified": "2024-09-04T18:30:49Z",
"published": "2024-04-02T18:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30806"
},
{
"type": "WEB",
"url": "https://github.com/axiomatic-systems/Bento4/issues/914"
},
{
"type": "WEB",
"url": "https://github.com/zhangteng0526/CVE-information/blob/main/CVE-2024-30806"
}
],
"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-3PF9-JFPX-834G
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 03:31Heap buffer overflow in ANGLE in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-10929"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:16:55Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in ANGLE in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-3pf9-jfpx-834g",
"modified": "2026-06-05T03:31:31Z",
"published": "2026-06-05T00:31:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10929"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/500429259"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3PPX-W77W-7JJ2
Vulnerability from github – Published: 2024-03-09 06:30 – Updated: 2024-08-05 21:31Heap-based Buffer Overflow vulnerability in gpac version 2.3-DEV-rev588-g7edc40fee-master, allows remote attackers to execute arbitrary code and cause a denial of service (DoS) via gf_fwrite component in at utils/os_file.c.
{
"affected": [],
"aliases": [
"CVE-2023-46426"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-09T06:15:50Z",
"severity": "HIGH"
},
"details": "Heap-based Buffer Overflow vulnerability in gpac version 2.3-DEV-rev588-g7edc40fee-master, allows remote attackers to execute arbitrary code and cause a denial of service (DoS) via gf_fwrite component in at utils/os_file.c.",
"id": "GHSA-3ppx-w77w-7jj2",
"modified": "2024-08-05T21:31:17Z",
"published": "2024-03-09T06:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46426"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/2642"
}
],
"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-3Q2H-7599-7R76
Vulnerability from github – Published: 2026-07-08 21:30 – Updated: 2026-07-08 21:30TLS ECH decryptor crash in Wireshark 4.6.0 to 4.6.6 allows denial of service
{
"affected": [],
"aliases": [
"CVE-2026-15165"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-08T21:16:47Z",
"severity": "MODERATE"
},
"details": "TLS ECH decryptor crash in Wireshark 4.6.0 to 4.6.6 allows denial of service",
"id": "GHSA-3q2h-7599-7r76",
"modified": "2026-07-08T21:30:30Z",
"published": "2026-07-08T21:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15165"
},
{
"type": "WEB",
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21390"
},
{
"type": "WEB",
"url": "https://www.wireshark.org/security/wnpa-sec-2026-56.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3Q56-MVP8-X9J4
Vulnerability from github – Published: 2022-04-15 00:00 – Updated: 2022-04-22 00:00A heap-based buffer overflow vulnerability exists in the readDatHeadVec functionality of AnyCubic Chitubox AnyCubic Plugin 1.0.0. A specially-crafted GF file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2021-21948"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-190",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-14T20:15:00Z",
"severity": "HIGH"
},
"details": "A heap-based buffer overflow vulnerability exists in the readDatHeadVec functionality of AnyCubic Chitubox AnyCubic Plugin 1.0.0. A specially-crafted GF file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.",
"id": "GHSA-3q56-mvp8-x9j4",
"modified": "2022-04-22T00:00:50Z",
"published": "2022-04-15T00:00:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21948"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1376"
}
],
"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-3QCX-C93V-59HR
Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-08 18:33Windows Secure Kernel Mode Elevation of Privilege Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-43528"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-08T18:15:16Z",
"severity": "HIGH"
},
"details": "Windows Secure Kernel Mode Elevation of Privilege Vulnerability",
"id": "GHSA-3qcx-c93v-59hr",
"modified": "2024-10-08T18:33:16Z",
"published": "2024-10-08T18:33:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43528"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43528"
}
],
"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"
}
]
}
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.