PT-2025-45905 · Julia · Ffmpeg Jll

Published

2025-10-19

·

Updated

2025-10-19

None

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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).
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Related Identifiers

JLSEC-2025-116

Affected Products

Ffmpeg Jll