CVE-1999-0288: Microsoft Windows Nt

Medium severity, CVSS 5.0. EPSS: 21.3% chance of exploitation in the next 30 days.

The WINS server in Microsoft Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service (process termination) via invalid UDP frames to port 137 (NETBIOS Name Service), as demonstrated via a flood of random packets.

Affected products

• Microsoft Windows Nt: version 4.0 only

Published 1998-08-01. Last modified 2026-06-16.