{"action":"Upgrade ffmpeg to 7:4.4-5 or later.","affected":[{"fixed":"7:4.4-5","introduced":"0"}],"component":"ffmpeg","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["7:4.4-5"],"id":"tcs_01M5NESNVYEBBC0RAHT4VBQ98E","modified_at":"2026-09-11T11:02:21.394513938Z","published_at":"2021-08-10T21:15:07.803Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-21697","https://security-tracker.debian.org/tracker/CVE-2020-21697"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-21697#Debian:13/ffmpeg","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-21697"}],"summary":"A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file."}