CVE-1999-0154: Microsoft Internet Information Server

Medium severity, CVSS 5.0. EPSS: 40% chance of exploitation in the next 30 days.

IIS 2.0 and 3.0 allows remote attackers to read the source code for ASP pages by appending a . (dot) to the end of the URL.

Affected products

• Microsoft Internet Information Server: version 3.0 only
• Microsoft Internet Information Services: version 2.0 only

Published 1999-12-31. Last modified 2026-06-16.