CVE-2015-6761: Ffmpeg

Medium severity, CVSS 6.8. EPSS: 1.1% chance of exploitation in the next 30 days.

The update_dimensions function in libavcodec/vp8.c in FFmpeg through 2.8.1, as used in Google Chrome before 46.0.2490.71 and other products, relies on a coefficient-partition count during multi-threaded operation, which allows remote attackers to cause a denial of service (race condition and memory corruption) or possibly have unspecified other impact via a crafted WebM file.

Affected products

• Ffmpeg Ffmpeg: up to and including 2.8.1
• Google Chrome: up to and including 45.0.2454.101

Published 2015-10-15. Last modified 2026-06-17.