CVE-1999-0824: Microsoft Windows Nt

Medium severity, CVSS 4.6. EPSS: 1.2% chance of exploitation in the next 30 days.

A Windows NT user can use SUBST to map a drive letter to a folder, which is not unmapped after the user logs off, potentially allowing that user to modify the location of folders accessed by later users.

Affected products

• Microsoft Windows Nt: version 4.0 only

Published 1999-11-30. Last modified 2026-06-16.