CVE-2026-125071
Discovered by AISLEPUBLISHEDCWE-252
Description
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in libavcodec/jvdec.c that allows attackers to crash applications by supplying oversized JV video packets. Attackers can pass a roughly 268435460-byte packet through the libavcodec API, overflowing the bit count so decode_frame() reads from a NULL buffer and causes denial of service.
CVSS Base Scores
CVSS v4.05.7
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS v3.1
4.7CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
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/25704
- https://github.com/FFmpeg/FFmpeg/commit/839c93f261cd3e1719edfac4244a2d0055ce8841
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/jvdec.c#L169
- https://github.com/FFmpeg/FFmpeg
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-in-jv-video-decoder