{"id":"CVE-2021-30123","details":"FFmpeg \u003c=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.","modified":"2026-08-18T14:45:54.117388Z","published":"2021-04-07T20:15:13.403Z","references":[{"type":"WEB","url":"http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=d6f293353c94c7ce200f6e0975ae3de49787f91f"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-24"},{"type":"EVIDENCE","url":"https://trac.ffmpeg.org/ticket/8845"},{"type":"EVIDENCE","url":"https://trac.ffmpeg.org/ticket/8863"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.ffmpeg.org/ffmpeg.git","events":[{"introduced":"c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"},{"last_affected":"c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"}],"database_specific":{"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.4"},{"last_affected":"4.4"}],"source":"CPE_STRING"}}],"versions":["4.4","n4.4-dev"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-30123.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"},{"last_affected":"c5079bf3bccd24bf8ed45ff47ff4071fd09e9fd8"}],"database_specific":{"cpe":"cpe:2.3:a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.4"},{"last_affected":"4.4"}],"source":"CPE_STRING"}}],"versions":["4.4","n4.4-dev"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-30123.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}