CVE-2002-1747: Maxim Krasnyansky Vtun

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

Vtun 2.5b1 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 ECB.

Affected products

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