CVE-2001-0951: Microsoft Windows 2000

Medium severity, CVSS 5.0. EPSS: 27.4% chance of exploitation in the next 30 days.

Windows 2000 allows remote attackers to cause a denial of service (CPU consumption) by flooding Internet Key Exchange (IKE) UDP port 500 with packets that contain a large number of dot characters.

Affected products

• Microsoft Windows 2000: any version

Published 2001-12-07. Last modified 2026-06-16.