CVE-2011-3946: Ffmpeg

Medium severity, CVSS 6.8. EPSS: 5.7% chance of exploitation in the next 30 days.

The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.

Affected products

• Ffmpeg Ffmpeg: up to and including 0.9.1; version 0.3 only; version 0.3.1 only; version 0.3.2 only; version 0.3.3 only; version 0.3.4 only; …

Published 2013-12-09. Last modified 2026-06-16.