CVE-2001-0334: Microsoft Internet Information Server

High severity, CVSS 7.5. EPSS: 14.7% chance of exploitation in the next 30 days.

FTP service in IIS 5.0 and earlier allows remote attackers to cause a denial of service via a wildcard sequence that generates a long string when it is expanded.

Affected products

• Microsoft Internet Information Server: up to and including 5.0

Published 2001-06-27. Last modified 2026-06-16.