CVE-2026-125192
Discovered by AISLEPUBLISHEDCWE-908
Description
FFmpeg through 9.0.2 contains an uninitialized memory vulnerability in the DXA decoder in libavcodec/dxa.c that allows attackers to disclose heap memory via crafted DXA files. Attackers can supply a DXA video with a type 4 frame that copies the uninitialized decomp_buf buffer into output pictures, exposing leftover heap contents in decoded frames.
CVSS Base Scores
CVSS v4.04.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS v3.1
3.3CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| FFmpeg | FFmpeg | 0 | affected |
Credits
- Umar Pathan (Umar0x)(finder)
- Joshua Rogers (AISLE Research)(reporter)
- Umar Pathan(remediation developer)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24463
- https://github.com/FFmpeg/FFmpeg/commit/a6e5d5ff993a525933d8d8f29071eb6c74b0436a
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/dxa.c#L341
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-memory-disclosure-via-dxa-decoder-uninitialized-buffer