CVE-2007-2227: Microsoft Outlook Express

Medium severity, CVSS 4.3. EPSS: 25% chance of exploitation in the next 30 days.

The MHTML protocol handler in Microsoft Outlook Express 6 and Windows Mail in Windows Vista does not properly handle Content-Disposition "notifications," which allows remote attackers to obtain sensitive information from other Internet Explorer domains, aka "Content Disposition Parsing Cross Domain Information Disclosure Vulnerability."

Affected products

• Microsoft Outlook Express: version 6.0 only
• Microsoft Windows Mail: any version

Published 2007-06-12. Last modified 2026-06-16.