CVE-2018-12459: Ffmpeg

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

An inconsistent bits-per-sample value in the ff_mpeg4_decode_picture_header function in libavcodec/mpeg4videodec.c in FFmpeg 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.

Affected products

• Ffmpeg Ffmpeg: version 4.0 only

Published 2018-06-15. Last modified 2026-06-17.