SharePoint security fixes released with November 2021 PU and offered through Microsoft Update

Below are the security fixes for the SharePoint OnPrem versions released this month.

SharePoint Foundation security fixes also have to be applied on SharePoint Server installations.
SharePoint Server security fixes also have to be applied on Project Server installations.

SharePoint 2013 Suite:

  • KB 5002063 – Excel Services for SharePoint 2013
  • KB 5002065 – Office Web Apps Server 2013

SharePoint 2016 Suite:

  • none

SharePoint 2019 Suite:

  • none

Office Online Server:

  • KB 5002053 – Office Online Server
See the Security Update Guide below for more details about the relevant fixes:

More information:

Please ensure to have a look at the SharePoint Patching Best Practices before applying new fixes.


  1. Hi Stefan, so there is no November 2021 CU this month?


    1. Only those fixes listed here were released.



  2. Hello Stefan!
    as November CUs have been cancelled, can you already estimate when December CUs will be released?

    Thanks a lot!


    1. Hi Alex,
      CUs are always planned to be released on the second tuesday of each month (US time). That would be Tuesday Dec 14th.


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