Technical Information

Brief overview of the risk:
This security update resolves a privately reported vulnerability in Microsoft Outlook. The vulnerability could allow remote code execution if a user opens or previews a specially crafted email message using an affected edition of Microsoft Outlook.
Detailed Information on the risk:

A remote code execution vulnerability exists in the way that Microsoft Outlook parses specially crafted S/MIME email messages. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

Further information on this exploit is available at : MS13-068