CVE-2026-125195
Discovered by AISLEPUBLISHEDCWE-908
Description
FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in adpcm_encode_frame() in libavcodec/adpcmenc.c that leaks heap bytes when encoding mono ADPCM_MS audio with trellis enabled. Attackers submitting audio to a service using this encoding receive output packets where about half of each block contains stale heap memory from the encoding process.
CVSS Base Scores
CVSS v4.02.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS v3.1
2.5CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| FFmpeg | FFmpeg | 0 | affected |
Credits
- Joshua Rogers (AISLE Research)(finder)
- Michael Niedermayer(remediation developer)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25694
- https://github.com/FFmpeg/FFmpeg/commit/fb13409aaffc151f602ad357db46052e98ea46e8
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/adpcmenc.c#L785
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-memory-disclosure-via-adpcm-ms-trellis-encoding