{"id":"CVE-2026-88377","title":"Bento4 1.6.0.0 contains an integer underflow vulnerability in the avcC and hvcC configuration atom parsers","summary":"Bento4 1.6.0.0 contains an integer underflow vulnerability in the avcC and hvcC configuration atom parsers. A specially crafted MP4 file containing an atom with a declared size smaller than AP4_ATOM_HEADER_SIZE can cause AP4_AvccAtom::Cr…","severity":"none","published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:08:55.030","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88377","references":[{"url":"https://github.com/axiomatic-systems/Bento4/issues/1092","label":"cve@mitre.org"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T16:47:15.849Z","slug":"CVE-2026-88377","body":"## Overview\n\nBento4 1.6.0.0 contains an integer underflow vulnerability in the avcC and hvcC configuration atom parsers. A specially crafted MP4 file containing an atom with a declared size smaller than AP4_ATOM_HEADER_SIZE can cause AP4_AvccAtom::Create() or AP4_HvccAtom::Create() to underflow the payload-size calculation. The resulting oversized buffer operation can cause invalid or NULL pointers to be passed to the AP4_DataBuffer copy path, resulting in application termination and denial of service.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}