{"id":"CVE-2026-125173","title":"FFmpeg through 9.0.2 Memory Leak in libxevd EVC Decoder Wrapper","summary":"FFmpeg through 9.0.2 contains a memory leak vulnerability in libxevd_receive_frame() in libavcodec/libxevd.c that fails to free pkt_au when an access unit produces no picture. Attackers can supply a crafted EVC stream with many access un…","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-401"],"vendor":"FFmpeg","product":"FFmpeg","affected":["FFmpeg >= 7.0 <= 9.0.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-09T21:04:04.608934Z"},"published":"2026-11-09","updated":"2026-11-09","sourceUpdated":"2026-11-09T21:06:58.585Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-125173","references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25416"},{"url":"https://github.com/FFmpeg/FFmpeg/commit/250303c2a59a71bfc544a6b583bc17b6cf0ca903","label":"Patch Commit"},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/libxevd.c#L341"},{"url":"https://github.com/FFmpeg/FFmpeg"},{"url":"https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-memory-leak-in-libxevd-evc-decoder-wrapper","label":"VulnCheck Advisory: FFmpeg through 9.0.2 Memory Leak in libxevd EVC Decoder Wrapper"}],"tags":["cve.org"],"ingestedAt":"2026-11-09T19:18:02.622Z","slug":"CVE-2026-125173","body":"## Overview\n\nFFmpeg through 9.0.2 contains a memory leak vulnerability in libxevd_receive_frame() in libavcodec/libxevd.c that fails to free pkt_au when an access unit produces no picture. Attackers can supply a crafted EVC stream with many access units containing only parameter sets or non-frame NAL units to exhaust memory in the decoding application.\n\n## Affected\n\n- `FFmpeg >= 7.0 <= 9.0.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}