{"action":"Upgrade ffmpeg to 7:4.3-2 or later.","affected":[{"fixed":"7:4.3-2","introduced":"0"}],"component":"ffmpeg","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["7:4.3-2"],"id":"tcs_01M5NFSGVYYPYEH2SR679QYT3F","modified_at":"2026-10-23T18:02:30.212288591Z","published_at":"2021-08-05T21:15:12.783Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3566","https://security-tracker.debian.org/tracker/CVE-2021-3566"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3566#Debian:14/ffmpeg","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3566"}],"summary":"Prior to ffmpeg version 4.3, the tty demuxer did not have a 'read_probe' function assigned to it. By crafting a legitimate \"ffconcat\" file that references an image, followed by a file the triggers the"}