CVE-2000-0567: Microsoft Outlook

Medium severity, CVSS 5.0. EPSS: 32.3% chance of exploitation in the next 30 days.

Buffer overflow in Microsoft Outlook and Outlook Express allows remote attackers to execute arbitrary commands via a long Date field in an email header, aka the "Malformed E-mail Header" vulnerability.

Affected products

• Microsoft Outlook: version 97 only; version 98 only; version 2000 only
• Microsoft Outlook Express: version 4.0 only; version 4.01 only; version 5.0 only

Published 2000-07-18. Last modified 2026-06-16.