Only two of this month’s updates are rated “critical” and both are for Internet Explorer. Other updates address vulnerabilities in Windows, Office, the .NET Framework and communications software (Lync/Communicator). Check out my regular Patch Tuesday article over on the TechRepublic web site for details about the patches.
http://www.techrepublic.com/blog/window-on-windows/its-microsoft-patch-tuesday-may-2013/7687