CVE-2001-0203: WatchGuard Firebox Ii

High severity, CVSS 10.0. EPSS: 2.3% chance of exploitation in the next 30 days.

Watchguard Firebox II firewall allows users with read-only access to gain read-write access, and administrative privileges, by accessing a file that contains hashed passphrases, and using the hashes during authentication.

Affected products

• WatchGuard Firebox Ii: version 4.0 only; version 4.1 only; version 4.2 only; version 4.3 only; version 4.4 only; version 4.5 only

Published 2001-03-26. Last modified 2026-06-16.