May 2017 CU for SharePoint 2013 product family is available for download

The product group released the May 2017 Cumulative Update for the SharePoint 2013 product family.

For May 2017 CU we have full server packages (also known as Uber packages). No other CU is required to fully patch SharePoint.

As this is a common question: Yes, May 2017 CU includes all fixes from May 2017 PU.


Be aware that all Updates for SharePoint 2013 require SharePoint Server 2013 SP1 to be installed first.

Please also have a look at the article that discusses how to properly patch a SharePoint 2013 farm which has Search enabled (see below).

This CU fixes the regression introduced in March 2017 CU and March 2017 PU (MS17-14) which prevents opening Word documents via Office Web Application Server if they are contained in sites with spaces in their names

Previous releases of the SharePoint Server 2013 cumulative update included both the executable and the .CAB file in the same self-extracting executable download. Because of the file size, the SharePoint Server 2013 package has been divided into several separate downloads. One contains the executable file, while the others contain the CAB file. All are necessary and must be placed in the same folder to successfully install the update. All are available by clicking the same Hotfix Download Available link in the KB article for the release.

This CU includes all SharePoint 2013 fixes (including all SharePoint 2013 security fixes) released since SP1. The CU does not include SP1. You need to install SP1 before installing this CU.

The KB articles for May 2017 CU should be available at the following locations in a couple of hours:

  • KB 3191911 - SharePoint Foundation 2013 May 2017 CU
  • KB 3191913 - SharePoint Server 2013 May 2017 CU
  • KB 3191912 - SharePoint Server 2013 with Project Server May 2017 CU
  • KB 3191888 - Office Web Apps Server 2013 May 2017 CU – this is also a security update!

The Full Server Packages for May 2017 CU are available through the following links:

Important: If your farm has been on a patch level lower than July 2015 CU: July 2015 CU and later contains a breaking change compared to earlier builds which requires running the SharePoint 2013 Products Configuration Wizard on each machine in the farm right after installing the CU.
If you don't run PSCONFIG after installing this CU (on a farm which had a lower patch level than July 2015 CU) crawl might no longer work - so ensure to schedule a maintenance window when installing this CU which includes PSCONFIG runs.
See here for detail:

Be aware that the SharePoint Server 2013 CU contains the SharePoint Foundation CU. And the SharePoint Server 2013 with Project Server CU contains Project Server CU, SharePoint Server CU and SharePoint Foundation CU.

Related Info:

Comments (15)

  1. Sven Engel says:

    Hi @all,
    does anybody know whether the search bug in task lists (contained in Dec CU) is resolved with this SharePoint 2013 CU?
    MS said a solution could not be expected before the May 2017 CU….

    Thanks in advanced

    1. Hi Sven,
      if you mean the issue that inplace search stopped filterung items in tasks lists after December 2016 CU: yes that fix is included in this CU.

      1. Sven says:

        Perfect. Thanks. 🙂

        1. Anthony says:

          My initial testing on this bug looks like it has been resolved. I can now filter on lists of type TasksWithTimelineAndHierarchy

  2. Shane O says:

    Have not confirmed when this started. Believe it includes the Dec-May CUs.

    Rich Text Editor on page edit. Paste, preview would be displayed. Now iframe embeds no longer work in browsers other then Internet Explorer?

    E.g. Youtube embed

    Oct 2016 CU: worked
    April CU: Only IE
    May CU: Only IE

  3. Hello Stefan,

    we had installed project server 2013 – July 2016 CU without a pre-requisite of Project server 2013 SP1 and we want to deploy march-2017 CU which has the same pre-requisite of Project server 2013 SP1. Can you help me to understand how can installed CU without pre-requisite?

    I checked patch status and products installed on the server but found SP1 is not installed, so I am wondering how did we installed July 2016 CU.

    1. Hi Muhammed,
      which exact fix did you install from July 2016 CU?

      1. Thanks for your reply !

        We installed this CU –,-2016,-cumulative-update-for-project-server-2013-kb3115291
        and now planning to install this –

        We are not concerned about the fix but about the pre-requisite, both July-2016 & March-2017 have the same pre-requisite of Project server 2013 SP1 and I don’t see Sp1 installed on farm servers.

        We installed July CU is that means CU contains binaries of SP1 ?

        1. Hi Muhammed,

          I have downloaded the fix and I can see that it does not install if SP1 is not installed.
          So it seems you have SP1 installed.
          To verify this please run the following script which will provide the patch baseline of your system:


          1. I ran script now found the below info

            DisplayName : Microsoft SharePoint Server 2013
            DisplayVersion : 15.0.4569.1506

            DisplayName : Microsoftr Project Server 2013
            DisplayVersion : 15.0.4569.1506

            this looks like older version

          2. Hi Muhammed,

            this is the version number of Project Server / SharePoint Server with SP1 slipstream.
            So SP1 is installed as assumed.
            I guess you used the SP1 slipstream version for the initial install.


          3. Thank you very much for the confirmation!

            However, i am not aware of SP1 spitstream will check on that.

            Best Regards

  4. Matteo Zamori says:

    Hi All,
    After having installed May 2017 CU for SP 2013 we discovered a regression related to “Reusable content” features. If you have items structured in folders/sub folders you will not be able to select them anymore from the pop up box.

    Any thoughts ?


    1. Hi Matteo,
      if you need this investigated ensure to open a support case with Microsoft.

      1. Matteo Zamori says:

        Thx Stefan, we are doing it 🙂

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