{"id":"CVE-2026-125190","published":"2026-11-09T19:16:54.777","lastModified":"2026-11-10T21:46:41.393","description":"FFmpeg through 9.0.2 contains an information disclosure vulnerability in decode_mvc2() in libavcodec/mvcdec.c that leaks uninitialized stack memory through unchecked palette indices. Attackers can supply a crafted MVC2 stream declaring few colors but referencing higher palette indices, copying process stack contents into decoded RGB frames.","cvssScore":3.3,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cwes":["CWE-908"],"vendors":[],"products":[],"references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25278","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/mvcdec.c#L141","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/3a5eb948e76dc6390e4b3cff7becf84bc492b7af","tags":[]},{"url":"https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-stack-memory-disclosure-via-mvc2-decoder","tags":[]}],"exploitRefs":[{"url":"https://github.com/FFmpeg/FFmpeg","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/mvcdec.c#L141","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/3a5eb948e76dc6390e4b3cff7becf84bc492b7af","tags":[]}],"hasPoc":true,"ai":null}