CVE-2001-1570: Microsoft Windows XP

Low severity, CVSS 2.1. EPSS: 1.7% chance of exploitation in the next 30 days.

Windows XP with fast user switching and account lockout enabled allows local users to deny user account access by setting the fast user switch to the same user (self) multiple times, which causes other accounts to be locked out.

Affected products

• Microsoft Windows XP: any version

Published 2001-12-31. Last modified 2026-06-16.