CVE-2026-125181
Discovered by AISLEPUBLISHEDCWE-787
Description
FFmpeg through 9.0.2 contains an out-of-bounds write vulnerability in flic_decode_frame_15_16BPP() in libavcodec/flicvideo.c that allows attackers to corrupt heap memory on big-endian builds. Attackers can supply a crafted 15/16 bpp FLIC/FLX file with an FLI_BRUN chunk whose non-terminating byte-swap loop writes packet-derived data past the frame buffer, crashing the process.
CVSS Base Scores
CVSS v4.07.3
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS v3.1
7.0CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| FFmpeg | FFmpeg | 0 | affected |
Credits
- Joey Tang(finder)
- Joshua Rogers (AISLE Research)(reporter)
- Michael Niedermayer(remediation developer)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24901
- https://github.com/FFmpeg/FFmpeg/commit/ee30fb98c0d4e97abbd5e371d2a3a926e92bec70
- https://github.com/FFmpeg/FFmpeg/commit/c0d308a9a616f4abcc4e0a4d86f7de92ecdef9f6
- https://github.com/FFmpeg/FFmpeg/commit/eb47d7bb6cf13042c6ab14e22fc0c0c3a6e51e12
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/flicvideo.c#L883
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-flic-decoder-out-of-bounds-write-via-fli-brun-byte-swap