CVE-2007-4316: Zyxel Zynos

Medium severity, CVSS 4.3. EPSS: 1.2% chance of exploitation in the next 30 days.

The management interface in ZyNOS firmware 3.62(WK.6) on the Zyxel Zywall 2 device has a certain default password, which allows remote attackers to perform administrative actions.

Affected products

  • Zyxel Zynos: version 3.62 only
  • Zyxel Zywall 2: any version

Published 2007-08-13. Last modified 2026-06-16.