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Revision Note: V1.1 (February 28, 2014): Advisory revised to announce a detection change in the 2862152 update for Windows 8.1 for 32-bit Systems, Windows 8.1 for x64-based Systems, Windows Server 2012 R2, and Windows RT 8.1. This is a detection change only. There were no changes to the update files. Customers who have already successfully updated their systems do not need to take any action.
Summary: Microsoft is announcing the availability of an update for all supported releases of Windows to address a vulnerability in how server connections are authenticated to clients in either DirectAccess or IPsec site-to-site tunnels.