CVE-2007-1057: Nortel Net Direct Client

Medium severity, CVSS 6.9. EPSS: 1.1% chance of exploitation in the next 30 days.

The Net Direct client for Linux before 6.0.5 in Nortel Application Switch 2424, VPN 3050 and 3070, and SSL VPN Module 1000 extracts and executes files with insecure permissions, which allows local users to exploit a race condition to replace a world-writable file in /tmp/NetClient and cause another user to execute arbitrary code when attempting to execute this client, as demonstrated by replacing /tmp/NetClient/client.

Affected products

• Nortel Net Direct Client: up to and including 6.0.4

Published 2007-02-21. Last modified 2026-06-16.