CVE-2016-2839: Mozilla Firefox

Medium severity, CVSS 6.5. EPSS: 1.8% chance of exploitation in the next 30 days.

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 on Linux make cairo _cairo_surface_get_extents calls that do not properly interact with libav header allocation in FFmpeg 0.10, which allows remote attackers to cause a denial of service (application crash) via a crafted video.

Affected products

• Mozilla Firefox: up to and including 47.0.1; version 45.1.0 only; version 45.1.1 only; version 45.2.0 only; version 45.3.0 only

Published 2016-08-05. Last modified 2026-06-17.