CVE-2010-0177: Mozilla Firefox

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

Mozilla Firefox before 3.0.19, 3.5.x before 3.5.9, and 3.6.x before 3.6.2, and SeaMonkey before 2.0.4, frees the contents of the window.navigator.plugins array while a reference to an array element is still active, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors, related to a "dangling pointer vulnerability."

Affected products

• Mozilla Firefox: version 3.6 only; up to and including 3.0.17; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; …
• Mozilla Seamonkey: up to and including 2.0.3; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …

Published 2010-04-05. Last modified 2026-06-16.