CVE-2005-0056: Microsoft Ie

Medium severity, CVSS 5.1. EPSS: 28.3% chance of exploitation in the next 30 days.

Internet Explorer 5.01, 5.5, and 6 does not properly validate certain URLs in Channel Definition Format (CDF) files, which allows remote attackers to obtain sensitive information or execute arbitrary code, aka the "Channel Definition Format (CDF) Cross Domain Vulnerability."

Affected products

• Microsoft Ie: version 6 only
• Microsoft Internet Explorer: version 5.01 only; version 5.5 only

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