CVE-2026-125178
Discovered by AISLEPUBLISHEDCWE-125
Description
FFmpeg through 9.0.2 contains an out-of-bounds heap read vulnerability in tdsc_load_cursor() in libavcodec/tdsc.c, which stores cursor dimensions before validating them. Attackers can supply a crafted AVI file with oversized TDSC cursor dimensions so tdsc_paint_cursor() reads past the cursor buffer, crashing the decoder or leaking heap memory into frames.
CVSS Base Scores
CVSS v4.06.9
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS v3.1
6.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Affected Products
| Vendor | Product | Version | Status |
|---|---|---|---|
| FFmpeg | FFmpeg | 0 | affected |
Credits
- Claude and Ada Logics(finder)
- Joshua Rogers (AISLE Research)(reporter)
- David Korczynski(remediation developer)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24682
- https://github.com/FFmpeg/FFmpeg/commit/12c589a37d093cc55618f8377b092dc21416806f
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/tdsc.c#L207
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-out-of-bounds-heap-read-via-tdsc-cursor-dimensions