CVE-2017-9996: Ffmpeg

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

The cdxl_decode_frame function in libavcodec/cdxl.c in FFmpeg 2.8.x before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 does not exclude the CHUNKY format, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.

Affected products

• Ffmpeg Ffmpeg: version 2.8 only; version 2.8.1 only; version 2.8.2 only; version 2.8.3 only; version 2.8.4 only; version 2.8.5 only; …

Published 2017-06-28. Last modified 2026-06-17.