Common Weakness Enumeration
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-39RH-F5C6-GCHQ
Vulnerability from github – Published: 2026-07-01 06:31 – Updated: 2026-07-01 12:31
VLAI
Details
In Telephony, there is a possible memory corruption due to a heap buffer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11006447; Issue ID: MSV-7871.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-20462"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-01T04:17:15Z",
"severity": "MODERATE"
},
"details": "In Telephony, there is a possible memory corruption due to a heap buffer overflow. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11006447; Issue ID: MSV-7871.",
"id": "GHSA-39rh-f5c6-gchq",
"modified": "2026-07-01T12:31:34Z",
"published": "2026-07-01T06:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20462"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/July-2026"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-39V7-36RJ-8JH4
Vulnerability from github – Published: 2023-10-20 18:30 – Updated: 2023-10-20 18:30
VLAI
Details
Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.
Severity
5.1 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-5686"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-10-20T17:15:08Z",
"severity": "MODERATE"
},
"details": "Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.",
"id": "GHSA-39v7-36rj-8jh4",
"modified": "2023-10-20T18:30:57Z",
"published": "2023-10-20T18:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5686"
},
{
"type": "WEB",
"url": "https://github.com/radareorg/radare2/commit/1bdda93e348c160c84e30da3637acef26d0348de"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/bbfe1f76-8fa1-4a8c-909d-65b16e970be0"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/64KUV6OGEVQ75QOV35PUVVDOJTKSJHYN"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SOZ6XCADVAPAIHMVSV3FUAN742BHXF55"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-3C2J-X8M7-HRHP
Vulnerability from github – Published: 2022-07-26 00:01 – Updated: 2022-07-28 00:00
VLAI
Details
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0060.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-2522"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-25T14:15:00Z",
"severity": "HIGH"
},
"details": "Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0060.",
"id": "GHSA-3c2j-x8m7-hrhp",
"modified": "2022-07-28T00:00:41Z",
"published": "2022-07-26T00:01:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2522"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/5fa9f23a63651a8abdb074b4fc2ec9b1adc6b089"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/b9e717367c395490149495cf375911b5d9de889e"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/3a2d83af-9542-4d93-8784-98b115135a22"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
}
],
"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-3C3C-R5GV-PF8W
Vulnerability from github – Published: 2026-06-09 18:31 – Updated: 2026-06-09 18:31
VLAI
Details
Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-48574"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:46Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.",
"id": "GHSA-3c3c-r5gv-pf8w",
"modified": "2026-06-09T18:31:00Z",
"published": "2026-06-09T18:31:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48574"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48574"
}
],
"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-3CMQ-9CQR-3JC4
Vulnerability from github – Published: 2024-02-16 03:30 – Updated: 2024-08-01 15:31
VLAI
Details
In setParameter of MtpPacket.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2024-0040"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-16T02:15:51Z",
"severity": "HIGH"
},
"details": "In setParameter of MtpPacket.cpp, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-3cmq-9cqr-3jc4",
"modified": "2024-08-01T15:31:26Z",
"published": "2024-02-16T03:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0040"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/frameworks/av/+/2ca6c27dc0336fd98f47cfb96dc514efa98e8864"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2024-02-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-3CVX-M52X-G7V7
Vulnerability from github – Published: 2024-10-08 18:33 – Updated: 2024-10-08 18:33
VLAI
Details
Windows Mobile Broadband Driver Remote Code Execution Vulnerability
Severity
6.8 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-43525"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-08T18:15:16Z",
"severity": "MODERATE"
},
"details": "Windows Mobile Broadband Driver Remote Code Execution Vulnerability",
"id": "GHSA-3cvx-m52x-g7v7",
"modified": "2024-10-08T18:33:15Z",
"published": "2024-10-08T18:33:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43525"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43525"
}
],
"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-3CWJ-8WQG-6VFM
Vulnerability from github – Published: 2022-05-24 17:49 – Updated: 2022-05-24 17:49
VLAI
Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.931. 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 handling of SGI 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-12376.
{
"affected": [],
"aliases": [
"CVE-2021-31436"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-29T17:15:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.931. 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 handling of SGI 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-12376.",
"id": "GHSA-3cwj-8wqg-6vfm",
"modified": "2022-05-24T17:49:11Z",
"published": "2022-05-24T17:49:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31436"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-479"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-3F6P-PJC9-WJ3G
Vulnerability from github – Published: 2023-07-19 15:30 – Updated: 2024-04-04 06:17
VLAI
Details
All versions of GE Digital CIMPLICITY that are not adhering to SDG guidance and accepting documents from untrusted sources are vulnerable to memory corruption issues due to insufficient input validation, including issues such as out-of-bounds reads and writes, use-after-free, stack-based buffer overflows, uninitialized pointers, and a heap-based buffer overflow. Successful exploitation could allow an attacker to execute arbitrary code.
Severity
6.6 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-3463"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-19T14:15:10Z",
"severity": "CRITICAL"
},
"details": "\nAll versions of GE Digital CIMPLICITY that are not adhering to SDG guidance and accepting documents from untrusted sources are vulnerable to memory corruption issues due to insufficient input validation, including issues such as out-of-bounds reads and writes, use-after-free, stack-based buffer overflows, uninitialized pointers, and a heap-based buffer overflow. Successful exploitation could allow an attacker to execute arbitrary code.\n\n",
"id": "GHSA-3f6p-pjc9-wj3g",
"modified": "2024-04-04T06:17:03Z",
"published": "2023-07-19T15:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3463"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-199-06"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3F78-XRF3-9XC8
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30
VLAI
Details
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
Severity
9.6 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-42904"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:09Z",
"severity": "CRITICAL"
},
"details": "Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.",
"id": "GHSA-3f78-xrf3-9xc8",
"modified": "2026-06-09T18:30:44Z",
"published": "2026-06-09T18:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42904"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42904"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-3FCQ-FCFJ-JGFQ
Vulnerability from github – Published: 2022-05-24 16:47 – Updated: 2023-01-19 18:30
VLAI
Details
A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2019-3846"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-03T19:29:00Z",
"severity": "HIGH"
},
"details": "A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network.",
"id": "GHSA-3fcq-fcfj-jgfq",
"modified": "2023-01-19T18:30:27Z",
"published": "2022-05-24T16:47:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3846"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2019/dsa-4465"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4118-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4117-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4095-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4095-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4094-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4093-1"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20190710-0002"
},
{
"type": "WEB",
"url": "https://seclists.org/oss-sec/2019/q2/133"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Jun/26"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2019/Jul/33"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/06/msg00010.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3846"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1713059"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2019-3846"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:2289"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0174"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3089"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3076"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:3055"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2741"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2703"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/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
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation MIT-10
Operation
Build and Compilation
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
Operation
Build and Compilation
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
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Strategy: Libraries or Frameworks
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Mitigation
Operation
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.