{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33165","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-17T21:17:08.888Z","datePublished":"2026-03-20T20:32:36.603Z","dateUpdated":"2026-03-24T18:48:34.866Z"},"containers":{"cna":{"title":"heap out-of-bounds write in libde265 1.0.16","problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787: Out-of-bounds Write","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/strukturag/libde265/security/advisories/GHSA-653q-9f73-8hvg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-653q-9f73-8hvg"},{"name":"https://github.com/strukturag/libde265/commit/c7891e412106130b83f8e8ea8b7f907e9449b658","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libde265/commit/c7891e412106130b83f8e8ea8b7f907e9449b658"},{"name":"https://github.com/strukturag/libde265/releases/tag/v1.0.17","tags":["x_refsource_MISC"],"url":"https://github.com/strukturag/libde265/releases/tag/v1.0.17"}],"affected":[{"vendor":"strukturag","product":"libde265","versions":[{"version":"< 1.0.17","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-20T20:32:36.603Z"},"descriptions":[{"lang":"en","value":"libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.17, a crafted HEVC bitstream causes an out-of-bounds heap write confirmed by AddressSanitizer. The trigger is a stale ctb_info.log2unitSize after an SPS change where PicWidthInCtbsY and PicHeightInCtbsY stay constant but Log2CtbSizeY changes, causing set_SliceHeaderIndex to index past the allocated image metadata array and write 2 bytes past the end of a heap allocation. This issue has been patched in version 1.0.17."}],"source":{"advisory":"GHSA-653q-9f73-8hvg","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-24T18:45:05.537736Z","id":"CVE-2026-33165","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-24T18:48:34.866Z"}}]}}