CVE-2006-3113: Mozilla Firefox

High severity, CVSS 7.5. EPSS: 6.4% chance of exploitation in the next 30 days.

Mozilla Firefox 1.5 before 1.5.0.5, Thunderbird before 1.5.0.5, and SeaMonkey before 1.0.3 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via simultaneous XPCOM events, which causes a timer object to be deleted in a way that triggers memory corruption.

Affected products

• Mozilla Firefox: version 1.5 only; version 1.5.0.1 only; version 1.5.0.2 only; version 1.5.0.3 only; version 1.5.0.4 only
• Mozilla Seamonkey: version 1.0 only; version 1.0.1 only; version 1.0.2 only
• Mozilla Thunderbird: version 1.5 only; version 1.5.0.2 only; version 1.5.0.4 only

Published 2006-07-27. Last modified 2026-06-16.