CVE-1999-0496: Microsoft Windows Nt

High severity, CVSS 7.2. EPSS: 1.4% chance of exploitation in the next 30 days.

A Windows NT 4.0 user can gain administrative rights by forcing NtOpenProcessToken to succeed regardless of the user's permissions, aka GetAdmin.

Affected products

• Microsoft Windows Nt: version 4.0 only

Published 1997-01-01. Last modified 2026-06-16.