CVE-2002-1778: Symantec Norton Personal Firewall

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Symantec Norton Personal Firewall 2002 allows remote attackers to bypass the portscan protection by using a (1) SYN/FIN, (2) SYN/FIN/URG, (3) SYN/FIN/PUSH, or (4) SYN/FIN/URG/PUSH scan.

Affected products

• Symantec Norton Personal Firewall: version 2002 only

Published 2002-12-31. Last modified 2026-06-16.