CVE-2000-0181: Check Point Firewall-1

Medium severity, CVSS 5.0. EPSS: 1.6% chance of exploitation in the next 30 days.

Firewall-1 3.0 and 4.0 leaks packets with private IP address information, which could allow remote attackers to determine the real IP address of the host that is making the connection.

Affected products

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

Published 2000-03-11. Last modified 2026-06-16.