{"id":"CVE-2026-125201","state":"PUBLISHED","title":"FFmpeg 7.0 before 8.1.3 and 9.x before 9.0.2 Heap Overflow via vulkan_av1.c","description":"FFmpeg 7.0 before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in vk_av1_decode_slice() in libavcodec/vulkan_av1.c because the tile-count limit is checked only on entry. Attackers can supply a crafted AV1 stream with more than 256 tiles decoded via the Vulkan hardware accelerator to overflow tile_sizes and corrupt heap memory.","publishedAt":"2026-11-09T19:11:20.789Z","updatedAt":"2026-11-09T19:11:20.789Z","severity":{"score":7.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["FFmpeg FFmpeg"],"affected":[{"vendor":"FFmpeg","product":"FFmpeg","packageURL":"pkg:github/ffmpeg/ffmpeg","defaultStatus":"unaffected","versions":[{"version":"7.0","status":"affected","lessThan":"8.1.3","versionType":"custom"},{"version":"9.0","status":"affected","lessThan":"9.0.2","versionType":"custom"}],"repo":"https://code.ffmpeg.org/FFmpeg/FFmpeg"}],"references":["https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24289","https://github.com/FFmpeg/FFmpeg/commit/d29ff884221042af219e53cc339a62356b061816","https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavcodec/vulkan_av1.c#L578","https://github.com/FFmpeg/FFmpeg","https://www.vulncheck.com/advisories/ffmpeg-7.0-before-8.1.3-and-9-x-before-9.0.2-heap-overflow-via-vulkan-av1-c"],"weaknesses":["CWE-787"],"ingestedAt":"2026-11-09T19:14:06.399Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/125xxx/CVE-2026-125201.json","commit":"61d6df80db1b12b1399aa01bc455626e606d2471","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-125201","state":"PUBLISHED","datePublished":"2026-11-09T19:11:20.789Z","dateUpdated":"2026-11-09T19:11:20.789Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-11-09T18:15:12.233Z"},"containers":{"cna":{"title":"FFmpeg 7.0 before 8.1.3 and 9.x before 9.0.2 Heap Overflow via vulkan_av1.c","descriptions":[{"lang":"en","value":"FFmpeg 7.0 before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in vk_av1_decode_slice() in libavcodec/vulkan_av1.c because the tile-count limit is checked only on entry. Attackers can supply a crafted AV1 stream with more than 256 tiles decoded via the Vulkan hardware accelerator to overflow tile_sizes and corrupt heap memory."}],"affected":[{"vendor":"FFmpeg","product":"FFmpeg","packageURL":"pkg:github/ffmpeg/ffmpeg","defaultStatus":"unaffected","versions":[{"version":"7.0","status":"affected","lessThan":"8.1.3","versionType":"custom"},{"version":"9.0","status":"affected","lessThan":"9.0.2","versionType":"custom"}],"repo":"https://code.ffmpeg.org/FFmpeg/FFmpeg"}],"references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24289","tags":["issue-tracking"]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/d29ff884221042af219e53cc339a62356b061816","tags":["patch"],"name":"Patch Commit"},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavcodec/vulkan_av1.c#L578","tags":["technical-description"]},{"url":"https://github.com/FFmpeg/FFmpeg","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/ffmpeg-7.0-before-8.1.3-and-9-x-before-9.0.2-heap-overflow-via-vulkan-av1-c","name":"VulnCheck Advisory: FFmpeg 7.0 before 8.1.3 and 9.x before 9.0.2 Heap Overflow via vulkan_av1.c","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.3,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"Out-of-bounds Write","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-11-09T19:11:20.789Z"},"datePublic":"2026-08-27T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"8.1.3"},{"vulnerable":true,"criteria":"cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0","versionEndExcluding":"9.0.2"}]}]}],"credits":[{"lang":"en","value":"Joshua Rogers (AISLE Research)","type":"finder"},{"lang":"en","value":"Sylvestre Ledru","type":"remediation developer"}],"x_generator":{"engine":"vulncheck-endgame"}}}}}