CVE-2010-1199: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 11.4% chance of exploitation in the next 30 days.

Integer overflow in the XSLT node sorting implementation in Mozilla Firefox 3.5.x before 3.5.10 and 3.6.x before 3.6.4, Thunderbird before 3.0.5, and SeaMonkey before 2.0.5 allows remote attackers to execute arbitrary code via a large text value for a node.

Affected products

• Mozilla Firefox: version 3.5 only; version 3.5.1 only; version 3.5.2 only; version 3.5.3 only; version 3.5.4 only; version 3.5.5 only; …
• Mozilla Seamonkey: up to and including 2.0.4; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …
• Mozilla Thunderbird: up to and including 3.0.4; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2010-06-24. Last modified 2026-06-16.