15 AUG 2012
This patch resolves several vulnerabilities that are present in the Microsoft Exchange Server WebReady Document View feature. Attackers who are looking to exploit this vulnerability may send a specially crafted file that can be viewed by a user using the Outlook Web Access in a browser. Microsoft recommends to disable WebReady Document View. Note that when the said view is disabled, users of Outlook Web Access are unable to preview contents of email attachments.