CVE-2000-0258: Microsoft Internet Information Server

High severity, CVSS 7.5. EPSS: 19.5% chance of exploitation in the next 30 days.

IIS 4.0 and 5.0 allows remote attackers to cause a denial of service by sending many URLs with a large number of escaped characters, aka the "Myriad Escaped Characters" Vulnerability.

Affected products

• Microsoft Internet Information Server: version 4.0 only
• Microsoft Internet Information Services: version 5.0 only

Published 2000-04-12. Last modified 2026-06-16.