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().
6273 vulnerabilities reference this CWE, most recent first.
GHSA-H952-963H-RV99
Vulnerability from github – Published: 2025-07-11 18:30 – Updated: 2026-05-07 13:26
VLAI
Summary
ExecuTorch vulnerable to Heap-based Buffer Overflow attack
Details
A heap-buffer-overflow vulnerability in the loading of ExecuTorch methods can cause the runtime to crash and potentially result in code execution or other undesirable effects. This issue affects ExecuTorch prior to commit 93b1a0c15f7eda49b2bc46b5b4c49557b4e9810f
Severity
8.1 (High)
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.6.0"
},
"package": {
"ecosystem": "PyPI",
"name": "executorch"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.7.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.6.0"
},
"package": {
"ecosystem": "Maven",
"name": "org.pytorch:executorch-android"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.7.0-rc1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.6.0"
},
"package": {
"ecosystem": "SwiftURL",
"name": "github.com/pytorch/executorch"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.7.0-rc1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-30402"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2025-07-11T22:57:06Z",
"nvd_published_at": "2025-07-11T18:15:33Z",
"severity": "HIGH"
},
"details": "A heap-buffer-overflow vulnerability in the loading of ExecuTorch methods can cause the runtime to crash and potentially result in code execution or other undesirable effects. This issue affects ExecuTorch prior to commit 93b1a0c15f7eda49b2bc46b5b4c49557b4e9810f",
"id": "GHSA-h952-963h-rv99",
"modified": "2026-05-07T13:26:08Z",
"published": "2025-07-11T18:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30402"
},
{
"type": "WEB",
"url": "https://github.com/pytorch/executorch/commit/93b1a0c15f7eda49b2bc46b5b4c49557b4e9810f"
},
{
"type": "PACKAGE",
"url": "https://github.com/pytorch/executorch"
},
{
"type": "WEB",
"url": "https://www.facebook.com/security/advisories/cve-2025-30402"
}
],
"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:H",
"type": "CVSS_V3"
}
],
"summary": "ExecuTorch vulnerable to Heap-based Buffer Overflow attack"
}
GHSA-H95H-GPF2-GM79
Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-01 18:31
VLAI
Details
A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-42483"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-01T14:16:22Z",
"severity": "CRITICAL"
},
"details": "A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.",
"id": "GHSA-h95h-gpf2-gm79",
"modified": "2026-05-01T18:31:23Z",
"published": "2026-05-01T15:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42483"
},
{
"type": "WEB",
"url": "https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f"
}
],
"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-H95R-C8C7-MRWX
Vulnerability from github – Published: 2026-03-12 14:15 – Updated: 2026-03-12 14:15
VLAI
Summary
ImageMagick has heap-based buffer overflow in UHDR encoder
Details
A heap-based buffer overflow in the UHDR encoder can happen due to truncation of a value and it would allow an out of bounds write.
================================================================
==2158399==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x521000039500 at pc 0x562a4a42f968 bp 0x7ffcca4ed6c0 sp 0x7ffcca4ed6b0
WRITE of size 1 at 0x521000039500 thread T0
Severity
6.8 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-AnyCPU"
},
"ranges": [
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"events": [
{
"introduced": "0"
},
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"fixed": "14.10.4"
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"name": "Magick.NET-Q16-HDRI-AnyCPU"
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"name": "Magick.NET-Q16-HDRI-OpenMP-arm64"
},
"ranges": [
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{
"introduced": "0"
},
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],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-arm64"
},
"ranges": [
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"package": {
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"name": "Magick.NET-Q16-HDRI-x64"
},
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"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q16-HDRI-x86"
},
"ranges": [
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"events": [
{
"introduced": "0"
},
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"fixed": "14.10.4"
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],
"type": "ECOSYSTEM"
}
]
},
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"ecosystem": "NuGet",
"name": "Magick.NET-Q16-OpenMP-arm64"
},
"ranges": [
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"name": "Magick.NET-Q8-AnyCPU"
},
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"name": "Magick.NET-Q8-OpenMP-arm64"
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},
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"name": "Magick.NET-Q8-OpenMP-x64"
},
"ranges": [
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{
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],
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}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-arm64"
},
"ranges": [
{
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{
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]
},
{
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"name": "Magick.NET-Q8-x64"
},
"ranges": [
{
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{
"introduced": "0"
},
{
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}
],
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}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Magick.NET-Q8-x86"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "14.10.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-30931"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-12T14:15:44Z",
"nvd_published_at": "2026-03-10T07:44:57Z",
"severity": "MODERATE"
},
"details": "A heap-based buffer overflow in the UHDR encoder can happen due to truncation of a value and it would allow an out of bounds write.\n\n```\n================================================================\n==2158399==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x521000039500 at pc 0x562a4a42f968 bp 0x7ffcca4ed6c0 sp 0x7ffcca4ed6b0\nWRITE of size 1 at 0x521000039500 thread T0\n```",
"id": "GHSA-h95r-c8c7-mrwx",
"modified": "2026-03-12T14:15:44Z",
"published": "2026-03-12T14:15:44Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-h95r-c8c7-mrwx"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-30931"
},
{
"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
},
{
"type": "WEB",
"url": "https://github.com/dlemstra/Magick.NET/releases/tag/14.10.4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"type": "CVSS_V3"
}
],
"summary": "ImageMagick has heap-based buffer overflow in UHDR encoder"
}
GHSA-H9C4-PJQQ-XFFC
Vulnerability from github – Published: 2022-09-23 00:00 – Updated: 2025-05-27 18:30
VLAI
Details
An integer overflow in WhatsApp could result in remote code execution in an established video call.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2022-36934"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-190"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-22T22:15:00Z",
"severity": "CRITICAL"
},
"details": "An integer overflow in WhatsApp could result in remote code execution in an established video call.",
"id": "GHSA-h9c4-pjqq-xffc",
"modified": "2025-05-27T18:30:40Z",
"published": "2022-09-23T00:00:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36934"
},
{
"type": "WEB",
"url": "https://www.whatsapp.com/security/advisories/2022"
}
],
"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-H9CJ-757C-FM2V
Vulnerability from github – Published: 2022-05-13 01:37 – Updated: 2022-05-13 01:37
VLAI
Details
A heap-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to the heap-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2017-12704"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-08-30T18:29:00Z",
"severity": "HIGH"
},
"details": "A heap-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to the heap-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.",
"id": "GHSA-h9cj-757c-fm2v",
"modified": "2022-05-13T01:37:46Z",
"published": "2022-05-13T01:37:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12704"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-17-241-02"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/100526"
}
],
"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-H9M8-8H93-R67X
Vulnerability from github – Published: 2023-12-22 21:30 – Updated: 2023-12-22 21:30
VLAI
Details
A vulnerability was found in OpenImageIO, where a heap buffer overflow exists in the src/gif.imageio/gifinput.cpp file. This flaw allows a remote attacker to pass a specially crafted file to the application, which triggers a heap-based buffer overflow and could cause a crash, leading to a denial of service.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2023-3430"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-18T14:15:08Z",
"severity": "HIGH"
},
"details": "A vulnerability was found in OpenImageIO, where a heap buffer overflow exists in the src/gif.imageio/gifinput.cpp file. This flaw allows a remote attacker to pass a specially crafted file to the application, which triggers a heap-based buffer overflow and could cause a crash, leading to a denial of service.",
"id": "GHSA-h9m8-8h93-r67x",
"modified": "2023-12-22T21:30:21Z",
"published": "2023-12-22T21:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3430"
},
{
"type": "WEB",
"url": "https://github.com/AcademySoftwareFoundation/OpenImageIO/issues/3840"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2218380"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-H9R3-9296-R88G
Vulnerability from github – Published: 2026-10-13 21:32 – Updated: 2026-10-13 21:32
VLAI
Details
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-102227"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:17:48Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.",
"id": "GHSA-h9r3-9296-r88g",
"modified": "2026-10-13T21:32:53Z",
"published": "2026-10-13T21:32:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102227"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102227"
}
],
"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-H9R4-JJ3X-8857
Vulnerability from github – Published: 2026-05-26 18:31 – Updated: 2026-05-26 21:31
VLAI
Details
FastNetMon Community Edition through 1.2.9 contains an integer overflow vulnerability in the packet capture buffer allocation. In src/packet_storage.hpp, the allocate_buffer() function computes memory_size_in_bytes as 'buffer_size_in_packets * (max_captured_packet_size + sizeof(fastnetmon_pcap_pkthdr_t)) + sizeof(fastnetmon_pcap_file_header_t)' using unsigned int (32-bit) arithmetic. With max_captured_packet_size=1500 and sizeof(fastnetmon_pcap_pkthdr_t)=16, each packet requires approximately 1516 bytes. If buffer_size_in_packets exceeds approximately 2,832,542, the multiplication overflows, resulting in a much smaller allocation than expected. Subsequent write_packet() calls then write past the allocated buffer, causing heap corruption. The buffer_size_in_packets value is derived from the ban_details_records_count configuration parameter, which is parsed using atoi() with no overflow checking.
Severity
7.1 (High)
{
"affected": [],
"aliases": [
"CVE-2026-48690"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-26T17:16:53Z",
"severity": "HIGH"
},
"details": "FastNetMon Community Edition through 1.2.9 contains an integer overflow vulnerability in the packet capture buffer allocation. In src/packet_storage.hpp, the allocate_buffer() function computes memory_size_in_bytes as \u0027buffer_size_in_packets * (max_captured_packet_size + sizeof(fastnetmon_pcap_pkthdr_t)) + sizeof(fastnetmon_pcap_file_header_t)\u0027 using unsigned int (32-bit) arithmetic. With max_captured_packet_size=1500 and sizeof(fastnetmon_pcap_pkthdr_t)=16, each packet requires approximately 1516 bytes. If buffer_size_in_packets exceeds approximately 2,832,542, the multiplication overflows, resulting in a much smaller allocation than expected. Subsequent write_packet() calls then write past the allocated buffer, causing heap corruption. The buffer_size_in_packets value is derived from the ban_details_records_count configuration parameter, which is parsed using atoi() with no overflow checking.",
"id": "GHSA-h9r4-jj3x-8857",
"modified": "2026-05-26T21:31:57Z",
"published": "2026-05-26T18:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48690"
},
{
"type": "WEB",
"url": "https://github.com/pavel-odintsov/fastnetmon"
},
{
"type": "WEB",
"url": "https://github.com/pavel-odintsov/fastnetmon/blob/master/src/packet_storage.hpp"
},
{
"type": "WEB",
"url": "https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48690-packet-storage-integer-overflow"
}
],
"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:N",
"type": "CVSS_V3"
}
]
}
GHSA-HC54-H48X-W9C6
Vulnerability from github – Published: 2026-10-13 21:35 – Updated: 2026-10-13 21:35
VLAI
Details
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-85358"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:20:58Z",
"severity": "HIGH"
},
"details": "Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-hc54-h48x-w9c6",
"modified": "2026-10-13T21:35:28Z",
"published": "2026-10-13T21:35:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85358"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85358"
}
],
"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-HC6J-P979-2J93
Vulnerability from github – Published: 2026-01-15 21:31 – Updated: 2026-01-15 21:31
VLAI
Details
A heap overflow in the ghi_dmx_declare_opid_bin() function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-70302"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-15T19:16:04Z",
"severity": "MODERATE"
},
"details": "A heap overflow in the ghi_dmx_declare_opid_bin() function of GPAC v2.4.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.",
"id": "GHSA-hc6j-p979-2j93",
"modified": "2026-01-15T21:31:47Z",
"published": "2026-01-15T21:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-70302"
},
{
"type": "WEB",
"url": "https://github.com/zakkanijia/POC/blob/main/gpac_ghi/ghi.md"
}
],
"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"
}
]
}
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.