CVE-2005-0044: Microsoft Exchange Server

High severity, CVSS 7.5. EPSS: 33.4% chance of exploitation in the next 30 days.

The OLE component in Windows 98, 2000, XP, and Server 2003, and Exchange Server 5.0 through 2003, does not properly validate the lengths of messages for certain OLE data, which allows remote attackers to execute arbitrary code, aka the "Input Validation Vulnerability."

Affected products

• Microsoft Exchange Server: version 5.0 only
• Microsoft Windows 2000: any version
• Microsoft Windows 2003 Server: version enterprise only; version enterprise_64-bit only; version r2 only; version standard only; version web only
• Microsoft Windows 98: any version
• Microsoft Windows 98se: any version
• Microsoft Windows Me: any version
• Microsoft Windows XP: any version

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