CVE-1999-0969: Microsoft Windows Nt

Medium severity, CVSS 5.0. EPSS: 13.3% chance of exploitation in the next 30 days.

The Windows NT RPC service allows remote attackers to conduct a denial of service using spoofed malformed RPC packets which generate an error message that is sent to the spoofed host, potentially setting up a loop, aka Snork.

Affected products

• Microsoft Windows Nt: version 4.0 only

Published 1998-09-29. Last modified 2026-06-16.