CVE-2026-125064

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25704 ↗
• https://github.com/FFmpeg/FFmpeg/commit/ec887b13a88afbaf44fb28c3045bda5d434da8dc ↗
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/g726.c#L473 ↗
• https://github.com/FFmpeg/FFmpeg ↗
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-in-g-726-adpcm-decoder ↗