ms15-064

MS15-064 is a security bulletin from Microsoft addressing vulnerabilities in Microsoft Exchange Server that could allow elevation of privilege. The most severe vulnerability requires a user to click a specially crafted URL leading to a targeted Outlook Web App site. An attacker cannot force users to visit such a site but must convince them to click a link, typically via instant message or email. The update is rated Important and was published on June 9, 2015. Discussions on WindowsForum.com cover the bulletin details, including the revision history and summary of the security update.