CVE-2002-1755: Tinc

Medium severity, CVSS 5.0. EPSS: 1.1% chance of exploitation in the next 30 days.

tinc 1.0pre3 and 1.0pre4 VPN does not authenticate forwarded packets, which allows remote attackers to inject data into user sessions without detection, and possibly control the data contents via cut-and-paste attacks on CBC.

Affected products

• Tinc Tinc: version 1.0pre3 only; version 1.0pre4 only

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