Severity Rating: Important
Revision Note: V1.2 (September 10, 2014): Revised Update FAQ and entries in the Operating System column of the Affected Software table to further clarify what version of Active Directory must be installed on a system to be offered the update. These are informational changes only.
Summary: This security update resolves one privately reported vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if an attacker makes multiple attempts to match passwords to a username.