CVE-2026-125201
Discovered by AISLEPUBLISHEDCWE-787
Description
FFmpeg 7.0 before 8.1.3 and 9.x before 9.0.2 contains a heap out-of-bounds write vulnerability in vk_av1_decode_slice() in libavcodec/vulkan_av1.c because the tile-count limit is checked only on entry. Attackers can supply a crafted AV1 stream with more than 256 tiles decoded via the Vulkan hardware accelerator to overflow tile_sizes and corrupt heap memory.
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 | 7.0 | affected |
| FFmpeg | FFmpeg | 9.0 | affected |
Credits
- Joshua Rogers (AISLE Research)(finder)
- Sylvestre Ledru(remediation developer)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24289
- https://github.com/FFmpeg/FFmpeg/commit/d29ff884221042af219e53cc339a62356b061816
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.1/libavcodec/vulkan_av1.c#L578
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-7.0-before-8.1.3-and-9-x-before-9.0.2-heap-overflow-via-vulkan-av1-c