CVE-2000-1149: Microsoft Windows Nt

High severity, CVSS 7.5. EPSS: 16.1% chance of exploitation in the next 30 days.

Buffer overflow in RegAPI.DLL used by Windows NT 4.0 Terminal Server allows remote attackers to execute arbitrary commands via a long username, aka the "Terminal Server Login Buffer Overflow" vulnerability.

Affected products

• Microsoft Windows Nt: version terminal_server only

Published 2001-01-09. Last modified 2026-06-16.