{"id":"CVE-2026-112009","title":"smpeg through 2.0.0 Heap Out-of-Bounds Read via MPEGsystem::FillBuffer","summary":"smpeg through 2.0.0 contains a heap out-of-bounds read vulnerability in MPEGsystem::FillBuffer() that allows attackers to read past the 16384-byte buffer by supplying a crafted system header stream table. Attackers can provide an MPEG fi…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-125"],"vendor":"icculus","product":"smpeg","affected":["smpeg <= 2.0.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-18T12:17:03.445754Z"},"exploitAvailable":true,"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T12:23:31.861Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112009","references":[{"url":"https://hackmd.io/@haindpwn/smpeg-system-header-stream-table-oob-read"},{"url":"https://github.com/icculus/smpeg/blob/d188dc111f4817288718705e4a84e248803ccfdc/MPEGsystem.cpp#L803-L823"},{"url":"https://github.com/icculus/smpeg"},{"url":"https://www.vulncheck.com/advisories/smpeg-through-2.0.0-heap-out-of-bounds-read-via-mpegsystem-fillbuffer","label":"VulnCheck Advisory: smpeg through 2.0.0 Heap Out-of-Bounds Read via MPEGsystem::FillBuffer"}],"tags":["cve.org","exploit-available"],"ingestedAt":"2026-10-18T11:40:26.624Z","slug":"CVE-2026-112009","body":"## Overview\n\nsmpeg through 2.0.0 contains a heap out-of-bounds read vulnerability in MPEGsystem::FillBuffer() that allows attackers to read past the 16384-byte buffer by supplying a crafted system header stream table. Attackers can provide an MPEG file whose stream table bytes all set the high bit, which crashes applications opening it through SMPEG_new, SMPEG_new_rwops, or SMPEG_new_data.\n\n## Affected\n\n- `smpeg <= 2.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":224367,"id":"CVE-2026-112009","ts":1792327353205,"field":"exploit_available","old":"false","new":"true"}]}