GHSA-966g-vp32-mvpwMediumCVSS 5.5
FFmpeg through 9.0.2 contains an infinite loop vulnerability in bit_allocation() in libavcodec...
🔗 CVE IDs covered (1)
📋 Description
FFmpeg through 9.0.2 contains an infinite loop vulnerability in bit_allocation() in libavcodec/imc.c that allows attackers to hang decoding by supplying audio blocks with a negative bit budget. Attackers can craft IMC or IAC audio files that drive freebits negative, causing the reduction loop to never terminate and consuming 100% CPU.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-125073
- https://github.com/FFmpeg/FFmpeg/commit/9b26bb4c9a4457d480899a1bf64ec080eceb1acd
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25696
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/imc.c#L572
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-infinite-loop-denial-of-service-via-imc-iac-decoder
- https://github.com/advisories/GHSA-966g-vp32-mvpw