CVE-2003-0007: Microsoft Outlook

Medium severity, CVSS 5.0. EPSS: 3.9% chance of exploitation in the next 30 days.

Microsoft Outlook 2002 does not properly handle requests to encrypt email messages with V1 Exchange Server Security certificates, which causes Outlook to send the email in plaintext, aka "Flaw in how Outlook 2002 handles V1 Exchange Server Security Certificates could lead to Information Disclosure."

Affected products

• Microsoft Outlook: version 2002 only

Published 2003-02-07. Last modified 2026-06-16.