CVE-2011-3973: Ffmpeg

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

cavsdec.c in libavcodec in FFmpeg before 0.7.4 and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, related to the decode_residual_block, check_for_slice, and cavs_decode_frame functions, a different vulnerability than CVE-2011-3362.

Affected products

• Ffmpeg Ffmpeg: up to and including 0.7.3; 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 2011-10-02. Last modified 2026-06-16.