Kurt Shintaku's Blog

Today, Microsoft released a critical patch to address the vulnerability identified as “Badlock”.  The patch is part of a larger critical cumulative update package. (3147458)

It is automatically getting pushed out via Windows Update to end users as part of today’s “Patch Tuesday”.  Corporations that manage their own patching are *encouraged* to evaluate & distribute this patch at their earliest convenience.

• Cumulative update for Windows 10 Version 1511 and Windows Server 2016 Technical Preview 4: April 12, 2016
  https://support.microsoft.com/en-us/kb/3147458

The individual patch (3148527) itself is documented here:

• Security Update for Microsoft Security Bulletin MS16-047 – Important 
  SAM and LSAD Remote Protocols (3148527)
  https://support.microsoft.com/kb/3148527