CVE-2007-3285: Mozilla Firefox

Medium severity, CVSS 6.8. EPSS: 1.8% chance of exploitation in the next 30 days.

Mozilla Firefox before 2.0.0.5, when run on Windows, allows remote attackers to bypass file type checks and possibly execute programs via a (1) file:/// or (2) resource: URI with a dangerous extension, followed by a NULL byte (%00) and a safer extension, which causes Firefox to treat the requested file differently than Windows would.

Affected products

• Mozilla Firefox: up to and including 2.0.0.4; version 0.8 only; version 0.9 only; version 0.9.1 only; version 0.9.2 only; version 0.9.3 only; …

Published 2007-06-20. Last modified 2026-06-16.