SharePoint security fixes released with November 2020 PU and offered through Microsoft Update

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

SharePoint 2010 Suite:

  • KB 4486744 – SharePoint Foundation 2010
  • KB 4486706 – SharePoint Server 2010 (core component)

SharePoint 2013 Suite:

  • KB 4486733 – SharePoint Foundation 2013 (core component)
  • KB 4486723 – SharePoint Server 2013 (core component)
  • KB 4486727 – Office Web Apps Server 2013

SharePoint 2016 Suite:

  • KB 4486717 – SharePoint Server 2016 (language independent)

SharePoint 2019 Suite:

  • KB 4486714 – SharePoint Server 2019 (language independent)

Office Online Server:

  • KB 4486713 – 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,

    Is it ok to install the security update and do not run the psconfig wizard for a month on all the servers. For some reason the patch installation took long time and we were exhausted the downtime window. Now business does not want to give us downtime for next 1 month on the production environment due to some internal events. Can we run the psconfig after a month? And do you see any issues with this?


    1. Hi Karen,
      the config wizard is required also for security fixes. some security fixes would not be active if the wizard was not run.

      SharePoint Server 2016 and 2019 allow zero downtime patching including running PSConfig.
      In case you have an older SharePoint version I would recommend to plan upgrade to the newer version to make us of the improved patching experience.


  2. Thank you Stefan. We are planning to run the psconfig on 2013 servers. It is just that it will be delayed due to business not giving any downtime in next 3 weeks.


  3. We have Security Updates for MS Sharepoint Enterprise Server 2013 (october and november) installed on one of the app server in farm on the other updates not installed. No option to uninstall updates available, also not sure which one we should consider problematic and act on. One with update installed or not installed for not sure what reason (updates pushed from our wsus server). Tried uninstall with wusa, no luck. Configuration wizard not run jet on neither of two app servers.
    Go and remove server with installed updates from farm and re-install Sharepoint or try to manually download and install Security updates which are missing on other server ?!


    1. Hi Ivana,
      SharePoint fixes cannot be uninstalled.
      You should install the same patches on the other servers in the farm.
      Alternatively you can remove the servers from the farm that have accidentely be upgraded and reinstall them afterwards to the older patch level before joining them back into the farm.


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