CVE-1999-1376: Microsoft Internet Information Server

High severity, CVSS 10.0. EPSS: 24% chance of exploitation in the next 30 days.

Buffer overflow in fpcount.exe in IIS 4.0 with FrontPage Server Extensions allows remote attackers to execute arbitrary commands.

Affected products

• Microsoft Internet Information Server: version 4.0 only

Published 1999-01-14. Last modified 2026-06-16.