CVE-2006-6504: Canonical Ubuntu Linux

High severity, CVSS 9.3. EPSS: 8.9% chance of exploitation in the next 30 days.

Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to execute arbitrary code by appending an SVG comment DOM node to another type of document, which triggers memory corruption.

Affected products

• Canonical Ubuntu Linux: version 5.10 only; version 6.06 only; version 6.10 only
• Mozilla Firefox: from 1.5, before 1.5.0.9 (fixed in 1.5.0.9); from 2.0, before 2.0.0.1 (fixed in 2.0.0.1)
• Mozilla Seamonkey: before 1.0.7 (fixed in 1.0.7)

Published 2006-12-20. Last modified 2026-06-16.