CVE-2001-0830: 6tunnel Project 6tunnel

High severity, CVSS 7.5. EPSS: 5.7% chance of exploitation in the next 30 days.

6tunnel 0.08 and earlier does not properly close sockets that were initiated by a client, which allows remote attackers to cause a denial of service (resource exhaustion) by repeatedly connecting to and disconnecting from the server.

Affected products

• 6tunnel Project 6tunnel: up to and including 0.08

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