CVE-2013-3905: Microsoft Outlook

Medium severity, CVSS 5.0. EPSS: 11.4% chance of exploitation in the next 30 days.

Microsoft Outlook 2007 SP3, 2010 SP1 and SP2, 2013, and 2013 RT does not properly expand metadata contained in S/MIME certificates, which allows remote attackers to obtain sensitive network configuration and state information via a crafted certificate in an e-mail message, aka "S/MIME AIA Vulnerability."

Affected products

• Microsoft Outlook: version 2007 only; version 2010 only; version 2013 only

Published 2013-11-13. Last modified 2026-06-16.