CVE-2009-1169: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 10.5% chance of exploitation in the next 30 days.

The txMozillaXSLTProcessor::TransformToDoc function in Mozilla Firefox before 3.0.8 and SeaMonkey before 1.1.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an XML file with a crafted XSLT transform.

Affected products

• Mozilla Firefox: up to and including 3.0.7; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2009-03-27. Last modified 2026-06-16.