{"id":"CVE-2026-49346","state":"PUBLISHED","title":"libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow","description":"libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.","publishedAt":"2026-06-19T20:12:14.958Z","updatedAt":"2026-06-22T14:05:14.851Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["strukturag libde265"],"affected":[{"vendor":"strukturag","product":"libde265","versions":[{"version":"< 1.1.0","status":"affected"}]}],"references":["https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86","https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/49xxx/CVE-2026-49346.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-49346","state":"PUBLISHED","datePublished":"2026-06-19T20:12:14.958Z","dateUpdated":"2026-06-22T14:05:14.851Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-29T14:35:45.903Z"},"containers":{"cna":{"title":"libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow","descriptions":[{"lang":"en","value":"libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue."}],"affected":[{"vendor":"strukturag","product":"libde265","versions":[{"version":"< 1.1.0","status":"affected"}]}],"references":[{"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86","name":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8","name":"https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","version":"3.1"}}],"problemTypes":[{"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":"2026-06-19T20:12:14.958Z"},"source":{"advisory":"GHSA-vv8h-932h-7r86","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-22T14:04:49.752955Z","id":"CVE-2026-49346","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-22T14:05:14.851Z"}}]}}}