CVE-2004-0284: Microsoft Internet Explorer 6.0, Outlook 2002, and Outlook 2003 allow remote attackers to cause a denial of...

Security readout for executives and security teams

This is an old denial-of-service issue in Microsoft Internet Explorer 6.0 and Outlook 2002/2003. A malicious website or HTML email could make the affected client consume CPU when a specific browser caching setting is disabled. The sources describe availability impact, not data theft or code execution. Exposure is likely limited to legacy endpoints still running the listed Microsoft clients with the named setting disabled. Modern environments should verify inventory before assuming exposure is gone, especially in isolated or long-lived operational systems. Treat this as a legacy exposure cleanup item, not a current enterprise emergency, unless the organization still depends on the named clients. Priority rises for environments with unsupported desktops handling untrusted web or email content. Mitigation focus: Check Microsoft or vendor guidance for historical fixes or supported migration paths.; Inventory systems for Internet Explorer 6.0, Outlook 2002, and Outlook 2003.; Enable "Do not save encrypted pages to disk" where operationally appropriate..

Prepared

Jun 30, 2026, 06:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.