{"action":"Upgrade ffmpeg to 7:4.1.3-1 or later.","affected":[{"fixed":"7:4.1.3-1","introduced":"0"}],"component":"ffmpeg","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["7:4.1.3-1"],"id":"tcs_01M5NEDB46VXY3ZVWJENMMP574","modified_at":"2026-09-21T07:00:47.928431086Z","published_at":"2019-03-12T09:29:00.577Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-9721","https://security-tracker.debian.org/tracker/CVE-2019-9721"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-9721#Debian:13/ffmpeg","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-9721"}],"summary":"A denial of service in the subtitle decoder in FFmpeg 3.2 and 4.1 allows attackers to hog the CPU via a crafted video file in Matroska format, because handle_open_brace in libavcodec/htmlsubtitles.c h"}