CVE-2017-7859: Ffmpeg

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

FFmpeg before 2017-03-05 has an out-of-bounds write caused by a heap-based buffer overflow related to the ff_h264_slice_context_init function in libavcodec/h264dec.c.

Affected products

• Ffmpeg Ffmpeg: up to and including 3.2.4

Published 2017-04-14. Last modified 2026-06-17.