The update rollups for Exchange 2010 and Exchange 2007 were published yesterday.
You can download the current URs here:
Exchange 2010 SP2 UR4v2: http://www.microsoft.com/de-de/download/details.aspx?id=34956
Exchange 2010 SP1 UR7v2: http://www.microsoft.com/de-de/download/details.aspx?id=34957
Exchange 2007 SP3 UR8v2: http://www.microsoft.com/de-de/download/details.aspx?id=34959
This is also the reason why the update was re-released:
http://technet.microsoft.com/en-us/security/advisory/2749655
In addition to the problem mentioned above, this problem has been fixed: