CVE-2026-125067

Description

FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in vble_decode_frame() in libavcodec/vble.c because it ignores init_get_bits() failure on oversized packets. Attackers can supply a crafted AVI file with a 268435452-byte VBLE frame, causing reads from a NULL bit reader buffer that crash 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/1206df65e54b6e9c01459c7cd9a95f9bde2736d7 ↗
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/vble.c#L139 ↗
• https://github.com/FFmpeg/FFmpeg ↗
• https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-vble-decoder-null-pointer-dereference-via-vble-decode-frame ↗