{"id":"CVE-2026-54241","state":"PUBLISHED","title":"libde265: SAO sequential filter heap buffer overflow via signed integer overflow","description":"libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate the sample adaptive offset input-buffer size, allowing a crafted HEVC stream with large dimensions and 16-bit luma samples to cause an integer overflow, an undersized allocation, and an out-of-bounds heap read that may expose heap data in decoded output or crash the decoder. Version 1.1.1 contains a patch.","publishedAt":"2026-09-11T21:21:59.190Z","updatedAt":"2026-09-14T16:15:30.052Z","severity":{"score":7.4,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["strukturag libde265"],"affected":[{"vendor":"strukturag","product":"libde265","versions":[{"version":"< 1.1.1","status":"affected"}]}],"references":["https://github.com/strukturag/libde265/security/advisories/GHSA-j2qq-x2xq-g9wr"],"weaknesses":["CWE-122","CWE-190"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54241.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54241","state":"PUBLISHED","datePublished":"2026-09-11T21:21:59.190Z","dateUpdated":"2026-09-14T16:15:30.052Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-12T16:25:43.084Z"},"containers":{"cna":{"title":"libde265: SAO sequential filter heap buffer overflow via signed integer overflow","descriptions":[{"lang":"en","value":"libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate the sample adaptive offset input-buffer size, allowing a crafted HEVC stream with large dimensions and 16-bit luma samples to cause an integer overflow, an undersized allocation, and an out-of-bounds heap read that may expose heap data in decoded output or crash the decoder. Version 1.1.1 contains a patch."}],"affected":[{"vendor":"strukturag","product":"libde265","versions":[{"version":"< 1.1.1","status":"affected"}]}],"references":[{"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-j2qq-x2xq-g9wr","name":"https://github.com/strukturag/libde265/security/advisories/GHSA-j2qq-x2xq-g9wr","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122: Heap-based Buffer Overflow","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-190","lang":"en","description":"CWE-190: Integer Overflow or Wraparound","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-11T21:21:59.190Z"},"source":{"advisory":"GHSA-j2qq-x2xq-g9wr","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-14T16:15:17.200716Z","id":"CVE-2026-54241","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T16:15:30.052Z"}}]}}}