Microsoft was supposed to release 14 security bulletins today for various software products. However, the company ended up offering only 13 bulletins for download that fixed a total of 47 issues in Internet Explorer, Office and other applications.
The missing security update was supposed to fix an exploit found in Microsoft's .NET framework and was previously labeled as "Important". ZDNet got a comment from Microsoft on the missing patch, with a spokesperson saying:
During some additional testing after advance notification, we determined one of the updates was not quite ready. We have not detected any attacks against this issue, or any of the others addressed today, and we'll continue to work on the bulletin and release it once it is ready, through our regular bulletin release process.
The other 13 bulletins were released as scheduled, including four that were labeled as "Critical" by Microsoft. One of them, MS13-072, is supposed to close 13 exploits found in different versions of Office that have been privately disclosed. Another bulletin, MS13-069, is supposed to fix 10 privately reported security issues with versions of Internet Explorer.
Microsoft also released a number of non-security patches for various software applications but one of them is causing problems for some Office 2013 users. Microsoft's forums have been the destination for messages from many users who claim that, after downloading new patches, the Folder Pane in Outlook 2013 is now empty. The specific patch numbers are KB2810009 and KB2817630. Users report that the Folder Pane in Outlook reappears after the updates have been uninstalled.