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-8VFJ-Q2CP-5M5J
Vulnerability from github – Published: 2026-04-14 23:32 – Updated: 2026-04-16 15:33An unrecognized magnify:method will result in an out of bounds read in the magnify operation.
==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a000000b30
READ of size 4 at 0x61a000000b30 thread T0
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"github_reviewed": true,
"github_reviewed_at": "2026-04-14T23:32:22Z",
"nvd_published_at": null,
"severity": "LOW"
},
"details": "An unrecognized magnify:method will result in an out of bounds read in the magnify operation.\n\n```\n==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a000000b30\nREAD of size 4 at 0x61a000000b30 thread T0\n```",
"id": "GHSA-8vfj-q2cp-5m5j",
"modified": "2026-04-16T15:33:26Z",
"published": "2026-04-14T23:32:22Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-8vfj-q2cp-5m5j"
},
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"type": "PACKAGE",
"url": "https://github.com/ImageMagick/ImageMagick"
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"type": "CVSS_V3"
}
],
"summary": "ImageMagick has a heap buffer overflow read in magnify operation via unrecognized magnify:method value"
}
GHSA-8VQV-GV6P-PJJR
Vulnerability from github – Published: 2022-12-23 00:30 – Updated: 2022-12-30 03:30A heap based buffer overflow vulnerability exists in tile decoding code of TIFF image parser in OpenImageIO master-branch-9aeece7a and v2.3.19.0. A specially-crafted TIFF file can lead to an out of bounds memory corruption, which can result in arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
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"aliases": [
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"cwe_ids": [
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"CWE-787"
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"github_reviewed": false,
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"nvd_published_at": "2022-12-22T22:15:00Z",
"severity": "CRITICAL"
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"details": "A heap based buffer overflow vulnerability exists in tile decoding code of TIFF image parser in OpenImageIO master-branch-9aeece7a and v2.3.19.0. A specially-crafted TIFF file can lead to an out of bounds memory corruption, which can result in arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.",
"id": "GHSA-8vqv-gv6p-pjjr",
"modified": "2022-12-30T03:30:19Z",
"published": "2022-12-23T00:30:24Z",
"references": [
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41639"
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{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3LET4MEPBSBJZK4EMLEBY4FUXKU5BMN"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-33"
},
{
"type": "WEB",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1633"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5384"
}
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GHSA-8VR7-33JP-GFGW
Vulnerability from github – Published: 2024-12-19 09:30 – Updated: 2024-12-19 09:30A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context
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"aliases": [
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"nvd_published_at": "2024-12-19T08:15:11Z",
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"details": "A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context",
"id": "GHSA-8vr7-33jp-gfgw",
"modified": "2024-12-19T09:30:47Z",
"published": "2024-12-19T09:30:47Z",
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12819"
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"type": "WEB",
"url": "https://fortiguard.com/advisory/FG-IR-20-082"
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"type": "CVSS_V3"
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]
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GHSA-8VVR-GCRM-9JM8
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
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"nvd_published_at": "2026-07-14T18:18:16Z",
"severity": "HIGH"
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"details": "Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.",
"id": "GHSA-8vvr-gcrm-9jm8",
"modified": "2026-07-14T18:32:34Z",
"published": "2026-07-14T18:32:34Z",
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55049"
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"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55049"
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GHSA-8VXJ-86V6-PPGQ
Vulnerability from github – Published: 2024-07-30 21:31 – Updated: 2024-08-01 15:32A heap buffer overflow in the function png_quantize() of hicolor v0.5.0 allows attackers to cause a Denial of Service (DoS) via a crafted PNG file.
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"severity": "MODERATE"
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"details": "A heap buffer overflow in the function png_quantize() of hicolor v0.5.0 allows attackers to cause a Denial of Service (DoS) via a crafted PNG file.",
"id": "GHSA-8vxj-86v6-ppgq",
"modified": "2024-08-01T15:32:15Z",
"published": "2024-07-30T21:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41440"
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{
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"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/hicolor/heapof-w1-png_quantize-cli-220c32"
},
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"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/hicolor/heapof-w1-png_quantize-cli-220c32/poc"
},
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"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/hicolor/heapof-w1-png_quantize-cli-220c32/poc/sample18.png"
},
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"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/hicolor/heapof-w1-png_quantize-cli-220c32/vulDescription.assets/image-20240530225208577.png"
},
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"url": "https://github.com/Helson-S/FuzzyTesting/blob/master/hicolor/heapof-w1-png_quantize-cli-220c32/vulDescription.md"
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}
GHSA-8W39-8W74-7CR2
Vulnerability from github – Published: 2025-11-04 09:31 – Updated: 2025-11-04 21:31In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. 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: WCNCR00441512; Issue ID: MSV-4153.
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"aliases": [
"CVE-2025-20729"
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"cwe_ids": [
"CWE-122",
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"nvd_published_at": "2025-11-04T07:15:35Z",
"severity": "MODERATE"
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"details": "In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. 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: WCNCR00441512; Issue ID: MSV-4153.",
"id": "GHSA-8w39-8w74-7cr2",
"modified": "2025-11-04T21:31:34Z",
"published": "2025-11-04T09:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20729"
},
{
"type": "WEB",
"url": "https://corp.mediatek.com/product-security-bulletin/November-2025"
}
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"schema_version": "1.4.0",
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"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
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]
}
GHSA-8WQ6-QH76-WPV9
Vulnerability from github – Published: 2026-07-01 17:39 – Updated: 2026-07-01 17:39Summary
A memory-safety vulnerability in Open Babel's ChemKin parser caused a heap buffer overflow when reading a crafted input file.
Details
The flaw was in ChemKinFormat::CheckSpecies. A malformed species
record caused the parser to write past the end of a heap-allocated
buffer.
Impact
Open Babel is a C++ library and CLI used to read and write chemistry
file formats; it is shipped by Linux distributions and embedded in
services that may parse untrusted input. Triggering this vulnerability
requires the victim to open a malicious ChemKin file with the
obabel tool, the OBConversion API, or any of the language
bindings (Python, Ruby, Java, R, Perl, C#, PHP).
Affected versions
All releases up to and including 3.1.1.
Patched version
3.2.0 (released 2026-05-26).
Patch
Fix commit: https://github.com/openbabel/openbabel/commit/af4a4212 Originally reported as #2830; fixes consolidated in #2913.
A minimized reproducer for this CVE is checked in under
test/files/fuzz_regress/ and is exercised on every CI build under
ASAN+UBSAN by the fuzzregresstest harness.
Credit
Reported via OSS-Fuzz.
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"github_reviewed_at": "2026-07-01T17:39:08Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\n\nA memory-safety vulnerability in Open Babel\u0027s ChemKin parser caused\na heap buffer overflow when reading a crafted input file.\n\n### Details\n\nThe flaw was in `ChemKinFormat::CheckSpecies`. A malformed species\nrecord caused the parser to write past the end of a heap-allocated\nbuffer.\n\n### Impact\n\nOpen Babel is a C++ library and CLI used to read and write chemistry\nfile formats; it is shipped by Linux distributions and embedded in\nservices that may parse untrusted input. Triggering this vulnerability\nrequires the victim to open a malicious ChemKin file with the\n`obabel` tool, the `OBConversion` API, or any of the language\nbindings (Python, Ruby, Java, R, Perl, C#, PHP).\n\n### Affected versions\n\nAll releases up to and including 3.1.1.\n\n### Patched version\n\n3.2.0 (released 2026-05-26).\n\n### Patch\n\nFix commit: https://github.com/openbabel/openbabel/commit/af4a4212\nOriginally reported as #2830; fixes consolidated in #2913.\n\nA minimized reproducer for this CVE is checked in under\n`test/files/fuzz_regress/` and is exercised on every CI build under\nASAN+UBSAN by the `fuzzregresstest` harness.\n\n### Credit\n\nReported via OSS-Fuzz.",
"id": "GHSA-8wq6-qh76-wpv9",
"modified": "2026-07-01T17:39:08Z",
"published": "2026-07-01T17:39:08Z",
"references": [
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"type": "WEB",
"url": "https://github.com/openbabel/openbabel/security/advisories/GHSA-8wq6-qh76-wpv9"
},
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"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10997"
},
{
"type": "WEB",
"url": "https://github.com/openbabel/openbabel/issues/2830"
},
{
"type": "PACKAGE",
"url": "https://github.com/openbabel/openbabel"
},
{
"type": "WEB",
"url": "https://github.com/user-attachments/files/22318543/poc.zip"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.325925"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.325925"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.654062"
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"schema_version": "1.4.0",
"severity": [
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"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Open Babel has heap buffer overflow in ChemKin ChemKinFormat::CheckSpecies"
}
GHSA-8WV4-73V4-QXP2
Vulnerability from github – Published: 2025-09-25 18:30 – Updated: 2025-09-25 18:30A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, remote attacker (Cisco ASA and FTD Software) or authenticated, remote attacker (Cisco IOS, IOS XE, and IOS XR Software) with low user privileges to execute arbitrary code on an affected device.
This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web service on an affected device after obtaining additional information about the system, overcoming exploit mitigations, or both. A successful exploit could allow the attacker to execute arbitrary code as root, which may lead to the complete compromise of the affected device.
For more information about this vulnerability, see the Details ["#details"] section of this advisory.
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"github_reviewed_at": null,
"nvd_published_at": "2025-09-25T16:15:32Z",
"severity": "CRITICAL"
},
"details": "A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, remote attacker (Cisco ASA and FTD Software) or authenticated, remote attacker (Cisco IOS, IOS XE, and IOS XR Software) with low user privileges to execute arbitrary code on an affected device. \n\n This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web service on an affected device after obtaining additional information about the system, overcoming exploit mitigations, or both. A successful exploit could allow the attacker to execute arbitrary code as root, which may lead to the complete compromise of the affected device.\n\n For more information about this vulnerability, see the Details [\"#details\"] section of this advisory.",
"id": "GHSA-8wv4-73v4-qxp2",
"modified": "2025-09-25T18:30:34Z",
"published": "2025-09-25T18:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20363"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-code-exec-WmfP3h3O"
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"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8WVG-QC85-JR5C
Vulnerability from github – Published: 2026-03-16 15:30 – Updated: 2026-06-30 03:35GStreamer rtpqdm2depay Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the processing of X-QDM RTP payloads. 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-28851.
{
"affected": [],
"aliases": [
"CVE-2026-3085"
],
"database_specific": {
"cwe_ids": [
"CWE-122",
"CWE-1284"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-16T14:19:46Z",
"severity": "HIGH"
},
"details": "GStreamer rtpqdm2depay Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\n\nThe specific flaw exists within the processing of X-QDM RTP payloads. 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-28851.",
"id": "GHSA-8wvg-qc85-jr5c",
"modified": "2026-06-30T03:35:54Z",
"published": "2026-03-16T15:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3085"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-167"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3085.json"
},
{
"type": "WEB",
"url": "https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/d60a94dee3c0a0942c9981491bf83e0de1900fbf"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447495"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-3085"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:9488"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:9487"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:9447"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:9446"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8876"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8874"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8862"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8857"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:8854"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7850"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:7673"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6750"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6300"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:6259"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:19180"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:19024"
}
],
"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-8WXM-QW9G-RQ3G
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 03:31Heap buffer overflow in Video in Google Chrome 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-2026-10949"
],
"database_specific": {
"cwe_ids": [
"CWE-122"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:16:57Z",
"severity": "HIGH"
},
"details": "Heap buffer overflow in Video in Google Chrome 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-8wxm-qw9g-rq3g",
"modified": "2026-06-05T03:31:32Z",
"published": "2026-06-05T00:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10949"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/504644843"
}
],
"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"
}
]
}
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.