CVE-2016-2819: Canonical Ubuntu Linux

High severity, CVSS 8.8. EPSS: 24% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allows remote attackers to execute arbitrary code via foreign-context HTML5 fragments, as demonstrated by fragments within an SVG element.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only; version 16.04 only
• Debian Debian Linux: version 8.0 only
• Mozilla Firefox: version 45.1.0 only; version 45.1.1 only; up to and including 46.0.1
• Opensuse Leap: version 42.1 only
• Opensuse Opensuse: version 13.1 only; version 13.2 only

Published 2016-06-13. Last modified 2026-06-17.