CVE-2005-0554: Microsoft Internet Explorer

High severity, CVSS 7.5. EPSS: 57.9% chance of exploitation in the next 30 days.

Buffer overflow in the URL processor of Microsoft Internet Explorer 5.01, 5.5, and 6 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a URL with a long hostname, aka "URL Parsing Memory Corruption Vulnerability."

Affected products

• Microsoft Internet Explorer: version 5.01 only; version 5.5 only; version 6.0 only

Published 2005-05-02. Last modified 2026-06-16.