{"id":"CVE-2026-125189","published":"2026-11-09T19:16:54.630","lastModified":"2026-11-10T21:46:41.330","description":"FFmpeg 8.1 through 9.0.2 contains a denial of service vulnerability in the lcevc_metadata bitstream filter caused by a process block position mismatch in lcevc_metadata_handle_vui(). Attackers can supply crafted LCEVC access units with two IDR or non-IDR NAL units to trigger an av_assert0 failure in ff_cbs_lcevc_list_add(), aborting the application.","cvssScore":4.7,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","cwes":["CWE-617"],"vendors":[],"products":[],"references":[{"url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25408","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/lcevc_metadata.c#L103","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/0747459f0c6f228566f5cb11ceed56b977208582","tags":[]},{"url":"https://www.vulncheck.com/advisories/ffmpeg-8.1-through-9.0.2-denial-of-service-via-lcevc-metadata-bitstream-filter","tags":[]}],"exploitRefs":[{"url":"https://github.com/FFmpeg/FFmpeg","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/lcevc_metadata.c#L103","tags":[]},{"url":"https://github.com/FFmpeg/FFmpeg/commit/0747459f0c6f228566f5cb11ceed56b977208582","tags":[]}],"hasPoc":true,"ai":null}