CVE-2001-1549: Tiny Software Tiny Personal Firewall

Low severity, CVSS 2.1. EPSS: 0.8% chance of exploitation in the next 30 days.

Tiny Personal Firewall 1.0 and 2.0 allows local users to bypass filtering via non-standard TCP packets created with non-Windows protocol adapters.

Affected products

• Tiny Software Tiny Personal Firewall: version 1.0 only; version 2.0 only

Published 2001-12-31. Last modified 2026-06-16.