CVE-2010-1208: Mozilla Firefox

High severity, CVSS 8.8. EPSS: 5.2% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the attribute-cloning functionality in the DOM implementation in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonkey before 2.0.6, allows remote attackers to execute arbitrary code via vectors related to deletion of an event attribute node with a nonzero reference count.

Affected products

• Mozilla Firefox: from 3.5, before 3.5.11 (fixed in 3.5.11); from 3.6, before 3.6.7 (fixed in 3.6.7)
• Mozilla Seamonkey: before 2.0.6 (fixed in 2.0.6)

Published 2010-07-30. Last modified 2026-06-16.