CVE-2011-3654: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 4.4% chance of exploitation in the next 30 days.

The browser engine in Mozilla Firefox before 8.0 and Thunderbird before 8.0 does not properly handle links from SVG mpath elements to non-SVG elements, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

Affected products

• Mozilla Firefox: up to and including 7.0.1; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …
• Mozilla Thunderbird: up to and including 7.0.1; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2011-11-09. Last modified 2026-06-16.