CVE-2000-0201: Microsoft Internet Explorer

Medium severity, CVSS 5.1. EPSS: 6.8% chance of exploitation in the next 30 days.

The window.showHelp() method in Internet Explorer 5.x does not restrict HTML help files (.chm) to be executed from the local host, which allows remote attackers to execute arbitrary commands via Microsoft Networking.

Affected products

• Microsoft Internet Explorer: version 5.0 only; version 5.01 only

Published 2000-03-01. Last modified 2026-06-16.