The gif_copy_img_rect function in libavcodec/gifdec.c in FFmpeg before 1.1.2 performs an incorrect calculation for an "end pointer," which allows remote attackers to have an unspecified impact via crafted GIF data that triggers an out-of-bounds array access.
Severity
High 10.0
Published
23 Nov 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.8% in the next 30 daysHigher than 86% of CVEs. EPSS by FIRST, 12 Nov 2026