CVE-1999-0967: Microsoft Internet Explorer

High severity, CVSS 10.0. EPSS: 6.9% chance of exploitation in the next 30 days.

Buffer overflow in the HTML library used by Internet Explorer, Outlook Express, and Windows Explorer via the res: local resource protocol.

Affected products

• Microsoft Internet Explorer: version 4.0 only
• Microsoft Outlook Express: any version
• Microsoft Windows Explorer: any version

Published 1997-11-01. Last modified 2026-06-16.