Microsoft Office 2011 14.4.5
Microsoft has updated Office 2011 to version 14.4.5, a critical update that fixes a privately reported vulnerability that could have allowed remote code execution if an attacker convinced a user to open a specially crafted Microsoft Word file (see this Microsoft Security Bulletin for more information). The update also addresses an issue that caused Outlook for Mac 2011’s main window not to be displayed after restarting in OS X 10.10 Yosemite, plus fixes a problem in Outlook that caused unnecessary synchronizing and updating of Microsoft Exchange server messages (for Exchange 2007 and Exchange 2010 accounts only).
(Free update from the Microsoft Download Center or through Microsoft AutoUpdate, 114 MB, release notes, 10.5.8+)