This update isn't available since Cumulative Update 7 for Exchange Server 2013 (2986485) was released on December 9, 2014. You can install the latest Exchange Server 2013 update to fix the issues that are described in this article.
Cumulative Update 5 for Microsoft Exchange Server 2013 is released on May 27, 2014. This Cumulative Update resolves a list of issues.
Issues that the cumulative update resolves
This update resolves the issues that are described in the following Microsoft Knowledge Base (KB) articles:
2963590 Message routing latency if IPv6 is enabled in Exchange Server 2013
2963566 Outlook Web App accessibility improvement for UI appearance in Exchange Server 2013
2962439 You cannot sync contacts or tasks in Microsoft CRM client for Outlook in an Exchange Server 2013 environment
2962435 CRM synchronization fails if the time zone name of a meeting is not set in an Exchange Server 2013 environment
2962434 Slow performance in Outlook Web App when Lync is integrated with Exchange Server 2013
2958430 "Some or all Identity references could not be translated" error when you manage DAG in Exchange Server 2013 SP1 in a disjoint namespace domain
2957592 IME is disabled in Outlook Web App when you press Tab to move the focus in an email message in Exchange Server 2013
2942609 Exchange ActiveSync proxy does not work from Exchange Server 2013 to Exchange Server 2007
2941221 EWS integration for Lync works incorrectly in an Exchange Server 2013 and 2007 coexistence environment
2926742 Plain-text message body is cleared when writing in Outlook Web App by using Internet Explorer 8 in Exchange Server 2013
2926308 Sender's email address is broken after importing a PST file into an Exchange Server 2013 mailbox
2925559 Users always get the FBA page when they access OWA or ECP in Exchange Server 2013
2924519 "SyncHealth\Hub" folder is created unexpectedly after installing Cumulative Update 2 for Exchange Server 2013
2916113 Cannot open .tif files from email messages by using Windows-based applications in an Exchange Server 2013 environment
2592398 Email messages in the Sent Items folder have the same PR_INTERNET_MESSAGE_ID property in an Exchange Server 2010 environment
2938292 Default apps in Outlook Web App do not work if Exchange is installed in Window Server 2012 R2
This cumulative update also resolves the following issue:
Exchange Server 2013 does not delete stale temporary files from the server. This may cause a disk space issue on the server.
Cumulative update information
After you install this update, your monitoring solution may indicate that the Microsoft Exchange Shared Cache Service restarts frequently. For more information, go to the following Microsoft website:
The setup process for Exchange Server 2013 will identify any missing prerequisites.
You have to restart the computer after you apply this cumulative update package.
You do not have to make any changes to the registry after you apply this cumulative update package.
After you install this cumulative update package, you cannot uninstall the cumulative update package to revert to an earlier version of Exchange Server 2013. If you uninstall this cumulative update package, Exchange Server 2013 is removed from the server.