A few days ago, Microsoft released an out-of-band update  and this is beneficial to apply

http://blogs.technet.com/b/msrc/archive/2014/11/19/security-bulletin-ms14-068-released.aspx

 

Today, we released an out-of-band security update to address a vulnerability in Kerberos which could allow Elevation of Privilege. This update is for all supported versions of Windows Server and includes a defense-in-depth update for all supported versions of Windows.

We strongly encourage customers to apply this update as soon as possible by following the directions in Security Bulletin MS14-068.