CVE-2026-30997: Ffmpeg

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

An out-of-bounds read in the read_global_param() function (libavcodec/av1dec.c) of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Affected products

• Ffmpeg Ffmpeg: up to and including 8.0.1

Published 2026-04-13. Last modified 2026-06-17.