Update for SharePoint Server 2016 (September 2020 CU)

A new cumulative update for SharePoint Server 2016 has been released (September 2020 CU).
This CU includes both Feature Pack 2, which has been included since the September CU (September 2017 CU), and the previous Feature Pack 1.

SP Build:
16.0.5056.1001 (Language independent CU)
16.0.5056.1000 (Language dependent CU)

SharePoint 2016 CU – KB articles describing the CU:

  • KB 4484506 – September 2020 Update for SharePoint Server 2016 (language independent)
  • KB 4484512 – September 2020 Update for SharePoint Server 2016 (language dependent)

SharePoint Server 2016 CU – CU download link:

After installation, remember to run the SharePoint 2016 Products Configuration Wizard (SharePoint 2016 Products Configuration Wizard), or the following command:

PSConfig.exe -cmd upgrade -inplace b2b -wait -cmd applicationcontent -install -cmd installfeatures -cmd secureresources -cmd services -install

Notice

Feature Pack 2 also includes all functionality from Feature Pack 1.

Always install both packages in this order:

  1. language independent (updates language-independent components)
  2. language dependent (updates language-dependent components)

For language-dependent packages, it does not matter which language you select, as each package contains updates for all languages.

If you install a new language pack on your SharePoint Server 2016 farm, you must then reinstall the language-dependent update package.

Remember that Distributed Cache must also be updated alongside SharePoint; see How to update Distributed Cache correctly and for Office Online Server, you must have the current RTM release; see  How to update Office Online Server.

Included fixes and improvements

The fixes and improvements listed for this CU are excerpts from official Microsoft KB articles in their original language (EN).

SharePoint Server 2016

This security update resolves remote code execution vulnerabilities that exists in Microsoft Excel or Word if the software does not check the source markup of an application package. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2020-1210 and Microsoft Common Vulnerabilities and Exposures CVE-2020-1218.

This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the following security advisories:

This security update contains fixes for the following nonsecurity issues:

  • Fixes an issue in which the “shared with other users” context menu in subfolders doesn’t work in classic view.
  • Fixes an issue in which a file is uploaded to the wrong folder in classic view of OneDrive for Business.

This security update contains improvements and fixes for the following nonsecurity issues:

  • Fixes an issue in which the custom code fails to retrieve SharePoint data through Content Management Interoperability Services (CMIS) REST queries.
  • Fixes an issue in which the “shared with other users” context menu in subfolders doesn’t work in classic view.

    Note To fix this issue completely, you have to install KB 4484512 together with this update.

  • Fixes an issue in which a file is uploaded to the wrong folder in classic view of OneDrive for Business.

    Note To fix this issue completely, you have to install KB 4484512 together with this update.

  • Fixes a hit highlighting issue that causes query suggestion token duplication or triplication for German compound words.
  • Fixes an issue in which resolving a single space in the People Picker generates “all users (Windows).”
  • Fixes an issue in which multiple items are added to the list when you add a new item to a list and click Save multiple times on the Ribbon.
  • Fixes an issue in which multiple columns or rows can’t be copied from Excel tables to the list in Quick Edit view.
  • Fixes an issue that generates a high CPU cost when you call search API on an extended web application.
  • Fixes an issue in which the library setting that should force opening a document in Word is not honored in classic experience when you use browsers other than Internet Explorer or legacy Edge.

Note To fix these issues completely, you have to install KB 4484506 together with this update.


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