CVE-2005-1213: Microsoft Outlook Express

High severity, CVSS 7.5. EPSS: 74% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the news reader for Microsoft Outlook Express (MSOE.DLL) 5.5 SP2, 6, and 6 SP1 allows remote malicious NNTP servers to execute arbitrary code via a LIST response with a long second field.

Affected products

• Microsoft Outlook Express: version 5.5 only; version 6.0 only

Published 2005-06-14. Last modified 2026-06-16.