The sole critical update in the bunch patches a particularly dangerous flaw in all supported versions of Windows that allows attackers to seize control over vulnerable systems remotely without authentication. The flaw is more likely to be a threat to businesses than to consumer systems. The remainder of todays updates address three other Windows vulnerabilities, and problems in Microsoft Expression Design and Microsoft Visual Studio. The fixes are available through Windows Update through the company’s Security Bulletin Summary for March 2012. As always, if you experience any problems or issues updating, please leave a note about your experience in the comments below.”]
Source: https://krebsonsecurity.com/2012/03/rdp-flaws-lead-microsofts-march-patch-batch/