CVE-1999-0153

Medium

Published: 01/07/1997(UTC)Updated: 16/06/2026(UTC)Translated: 18/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Very high risk

21.09%

97th percentile - higher than 97% of all known CVEs

The WinNuke vulnerability in Windows 95/NT allows for a DoS attack via the NETBIOS port, leading to remote system lockup.

An attacker can remotely lock the system, resulting in service downtime and potential financial losses for the organization.

It is recommended to block the NETBIOS port in the firewall and update systems to newer versions that are not vulnerable to this issue.

Original NVD description (English source)

Windows 95/NT out of band (OOB) data denial of service through NETBIOS port, aka WinNuke.