{"action":"Upgrade ffmpeg to 4.4-r0 or later.","affected":[{"fixed":"4.4-r0","introduced":"0"}],"component":"ffmpeg","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["4.4-r0"],"id":"tcs_01M6GM2S7SAY4H5BE2M1F6BE43","modified_at":"2026-11-03T06:32:24.563325200Z","published_at":"2021-05-24T18:15:07.800Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-21041","https://security.alpinelinux.org/vuln/CVE-2020-21041"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-21041#Alpine:v3.21/ffmpeg","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-21041"}],"summary":"Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service"}