The decode_slice_header function in libavcodec/h264.c in FFmpeg before 1.1.2 does not properly check when the pixel format changes, which allows remote attackers to have unspecified impact via crafted H.264 video data, related to an out-of-bounds array access.
Severity
High 9.3
Published
23 Nov 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.4% in the next 30 daysHigher than 84% of CVEs. EPSS by FIRST, 12 Nov 2026