CVE-2009-2467: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 5.4% chance of exploitation in the next 30 days.

Mozilla Firefox before 3.0.12 and 3.5 before 3.5.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors involving a Flash object, a slow script dialog, and the unloading of the Flash plugin, which triggers attempted use of a deleted object.

Affected products

• Mozilla Firefox: up to and including 3.0.11; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2009-07-22. Last modified 2026-06-16.