CVE-2000-0150: Check Point Firewall-1

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

Check Point Firewall-1 allows remote attackers to bypass port access restrictions on an FTP server by forcing it to send malicious packets that Firewall-1 misinterprets as a valid 227 response to a client's PASV attempt.

Affected products

• Check Point Firewall-1: version 3.0 only; version 4.0 only
• Cisco Pix Firewall Software: version 4.1(6) only; version 4.1(6b) only; version 4.2(1) only; version 4.2(2) only; version 4.3 only; version 4.4(4) only; …

Published 2000-02-12. Last modified 2026-06-16.