OR
          *cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* versions up to (including) 8.1.2

VulnCheck: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/de771bd52774a52d45b0e2c82e56995a1ef40df7 Types: Patch

VulnCheck: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23767 Types: Issue Tracking, Patch

VulnCheck: https://www.vulncheck.com/advisories/ffmpeg-out-of-bounds-write-via-ty-demuxer-and-shorten-decoder Types: Third Party Advisory

{"timestamp":"2026-07-23T19:42:41.569092Z","id":"CVE-2026-65704","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

{"timestamp":"2026-07-23T00:00:00+00:00","id":"CVE-2026-65704","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

{"timestamp":"2026-07-23T19:42:41.569092Z","id":"CVE-2026-65704","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

FFmpeg through 8.1.2 contains an out-of-bounds write vulnerability that allows attackers to cause heap corruption by supplying a crafted ffconcat file processed with the -safe 0 flag. The TY demuxer's demux_audio() function decrements packet size without bounds checking, producing a negative size value that is passed to memcpy() in shorten_decode_frame(), where conversion to size_t wraps the value to near SIZE_MAX and triggers reads beyond the source allocation and writes far beyond the Shorten decoder's bitstream buffer.

AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-191

CWE-787

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/de771bd52774a52d45b0e2c82e56995a1ef40df7

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23767

https://www.vulncheck.com/advisories/ffmpeg-out-of-bounds-write-via-ty-demuxer-and-shorten-decoder

[{"vendor":"FFmpeg","product":"FFmpeg","defaultStatus":"affected","repo":"https://code.ffmpeg.org/FFmpeg/FFmpeg","versions":[{"version":"0","lessThanOrEqual":"8.1.2","versionType":"custom","status":"affected"},{"version":"de771bd52774a52d45b0e2c82e56995a1ef40df7","versionType":"git","status":"unaffected"}]}]