If you work within a mixed environment Microsoft has released an update for it's remote desktop client for Mac addressing heap overflows. Users should make sure to download the latest update and work with MS System Administrators, this patch is labeled critical by Microsoft.
They have also released Mac Office fixes related to Open XML, including Macro-enabled documents and templates. Users may have encountered a message in Excel that it is unable to open files. Improvements have been made to address compabilities issues. Users should use the auto update feature of Mac Office of can download it here.