CVE-2016-2833: Canonical Ubuntu Linux

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

Mozilla Firefox before 47.0 ignores Content Security Policy (CSP) directives for cross-domain Java applets, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted applet.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only; version 16.04 only
• Mozilla Firefox: 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.