{"id":"CVE-2026-125172","published":"2026-11-09T19:16:52.073","lastModified":"2026-11-10T21:46:31.207","description":"FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in libxevd_receive_frame() in libavcodec/libxevd.c that fails to validate NAL unit length prefixes against remaining packet data. Attackers can supply crafted EVC media with oversized 4-byte NAL length prefixes, causing libxevd to read past the packet buffer, crashing the application or exposing adjacent heap memory.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwes":["CWE-125"],"vendors":[],"products":[],"references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25416","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/libxevd.c#L355","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/e06b3953d4253f8b56271628ba4083fde96aeadb","tags":[]},{"url":"https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-out-of-bounds-read-via-libxevd-evc-nal-length","tags":[]}],"exploitRefs":[{"url":"https://github.com/FFmpeg/FFmpeg","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/libxevd.c#L355","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/e06b3953d4253f8b56271628ba4083fde96aeadb","tags":[]}],"hasPoc":true,"ai":null}