CVE-1999-0593: Microsoft Windows Nt

Medium severity, CVSS 4.9. EPSS: 2.2% chance of exploitation in the next 30 days.

The default setting for the Winlogon key entry ShutdownWithoutLogon in Windows NT allows users with physical access to shut down a Windows NT system without logging in.

Affected products

• Microsoft Windows Nt: any version

Published 1999-01-01. Last modified 2026-06-16.