CVE-2001-0692: WatchGuard Firebox 2500

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

SMTP proxy in WatchGuard Firebox (2500 and 4500) 4.5 and 4.6 allows a remote attacker to bypass firewall filtering via a base64 MIME encoded email attachment whose boundary name ends in two dashes.

Affected products

• WatchGuard Firebox 2500: version 4.5 only; version 4.6 only
• WatchGuard Firebox 4500: version 4.5 only; version 4.6 only

Published 2001-09-20. Last modified 2026-06-16.