CVE-1999-0506: Microsoft Windows 2000

High severity, CVSS 7.2. EPSS: 17.2% chance of exploitation in the next 30 days.

A Windows NT domain user or administrator account has a default, null, blank, or missing password.

Affected products

• Microsoft Windows 2000: any version
• Microsoft Windows Nt: any version

Published 1998-10-01. Last modified 2026-06-16.