{"id":"JLSEC-2025-116","summary":"Prior to ffmpeg version 4.3, the tty demuxer did not have a '`read_probe`' function assigned to it","details":"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 tty demuxer, the contents of the second file will be copied into the output file verbatim (as long as the `-vcodec copy` option is passed to ffmpeg).","modified":"2026-07-23T22:30:08.931115260Z","published":"2025-10-19T19:08:53.760Z","upstream":["CVE-2021-3566"],"database_specific":{"license":"CC-BY-4.0","sources":[{"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3566","database_specific":{"status":"Modified"},"id":"CVE-2021-3566","imported":"2026-07-17T20:34:35.146Z","modified":"2026-06-17T04:05:21.373Z","published":"2021-08-05T21:15:12.783Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-3566"}]},"references":[{"type":"WEB","url":"https://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157532#diff-74f6b92a0541378ad15de9c29c0a2b0c69881ad9ffc71abe568b88b535e00a7f"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html"}],"affected":[{"package":{"name":"FFMPEG_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.3.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-116.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V2","score":"AV:N/AC:M/Au:N/C:P/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"}]}