CVE-2026-125064
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Nov 09, 2026
Vendor
unknown
Description
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in g726_decode_frame() in libavcodec/g726.c because it ignores init_get_bits() failure on oversized packets. Attackers can supply a crafted AVI file with a 268435392-byte G.726 audio chunk to make the decoder read from a NULL buffer, crashing the process.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25704
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/g726.c#L473
- https://github.com/FFmpeg/FFmpeg/commit/ec887b13a88afbaf44fb28c3045bda5d434da8dc
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-in-g-726-adpcm-decoder