CVE-2009-2464: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 13.2% chance of exploitation in the next 30 days.

The nsXULTemplateQueryProcessorRDF::CheckIsSeparator function in Mozilla Firefox before 3.0.12, SeaMonkey 2.0a1pre, and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to loading multiple RDF files in a XUL tree element.

Affected products

• Mozilla Firefox: up to and including 3.0.11; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …
• Mozilla Seamonkey: version 2.0a1pre only
• Mozilla Thunderbird: version 2.0.0.0 only; version 2.0.0.1 only; version 2.0.0.2 only; version 2.0.0.3 only; version 2.0.0.4 only; version 2.0.0.5 only; …

Published 2009-07-22. Last modified 2026-06-16.