CVE-2006-1726: Mozilla Firefox

High severity, CVSS 9.3. EPSS: 6.9% chance of exploitation in the next 30 days.

Unspecified vulnerability in Firefox and Thunderbird 1.5 before 1.5.0.2, and SeaMonkey before 1.0.1, allows remote attackers to bypass the js_ValueToFunctionObject check and execute arbitrary code via unknown vectors involving setTimeout and Firefox' ForEach method.

Affected products

• Mozilla Firefox: version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; version 1.0.5 only; …
• Mozilla Seamonkey: version 1.0 only
• Mozilla Thunderbird: version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; version 1.0.5 only; …

Published 2006-04-14. Last modified 2026-06-16.