CVE-2000-0808: Check Point Firewall-1

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

The seed generation mechanism in the inter-module S/Key authentication mechanism in Check Point VPN-1/FireWall-1 4.1 and earlier allows remote attackers to bypass authentication via a brute force attack, aka "One-time (s/key) Password Authentication."

Affected products

• Check Point Firewall-1: version 3.0 only; version 4.0 only; version 4.1 only

Published 2000-11-14. Last modified 2026-06-16.