CVE-2004-2227: Mozilla Firefox

Medium severity, CVSS 5.0. EPSS: 1.8% chance of exploitation in the next 30 days.

Mozilla Firefox before 1.0 truncates long filenames in the file download dialog box, which makes it easier for remote attackers to trick users into downloading files with dangerous extensions.

Affected products

• Mozilla Firefox: version 0.8 only; version 0.9 only; version 0.9.1 only; version 0.9.2 only; version 0.9.3 only; version 0.10 only; …

Published 2004-12-31. Last modified 2026-06-16.