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This security update resolves a Microsoft SharePoint Server spoofing vulnerability. To learn more about the vulnerability, see ​​​​Microsoft Common Vulnerabilities and Exposures CVE-2023-23395.


  • This is build 16.0.16130.20206 of the security update package.

  • To apply this security update, you must have the release version of Microsoft SharePoint Server Subscription Edition installed on the computer.

Improvements and fixes

This security update introduces the SharePoint Server Subscription Edition Version 23H1 feature update. This feature update will be included in all SharePoint Server Subscription Edition public updates going forward. For more information about this feature update, see New and improved features in SharePoint Server Subscription Edition Version 23H1.

This security update contains improvements and fixes for the following nonsecurity issues in SharePoint Server Subscription Edition:

  • Installs "Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.32.31332" if that version or a later version of the redistributable isn't already installed.

  • Updates flight configuration to enable the new "certificate private key access management" feature for early release.

  • Fixes an issue in which the breadcrumb navigation shows an ID instead of a label when you filter a view that's based on a managed metadata column.

  • Fixes a permission issue that's related to the New-SPSite cmdlet.

  • Fixes an issue in which the default value for Managed Metadata type columns isn't shown in the New Form when you create new list items in the Modern view.

  • Fixes an issue in which the Modern document library web part doesn't redirect correctly when you create a new Site Page from it.

  • Fixes an issue in which "Try Link" unexpectedly encodes the link as HTML.

  • Fixes an issue in which "Copy to" doesn't accept a subsite URL or managed path URL as input. The "Copy to" function still accepts a main site URL.

  • Fixes an incoming email failure issue because of duplicate users in Active Directory Domain Services (AD DS).

This security update also contains fixes for the following nonsecurity issues in Microsoft Project Server:

  • Fixes an issue in which you might not be able to update resources by using the client-side object model (CSOM) if a remote event handler is attached to a resource event, such as Resource Changing.

  • Fixes the following issues that you might encounter when you publish projects:

    • Logging on and connecting to the server that contains the Project client might be blocked.

    • Opening projects that have no relationship to the publishing projects might not be possible.

    • Loading projects in the Schedule web part might be slow.

    • Team members might not be able to access the Tasks page.

    • Going to the Force Check-in Enterprise Objects administrative page might be blocked.

Known issues in this update

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Method 3: Microsoft Download Center

You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

More information

Security update deployment information

For deployment information about this update, see Deployments - Security Update Guide.

Security update replacement information

This security update replaces previously released security update 5002353.

File hash information

File name

SHA256 hash



File information

Download the list of files that are included in security update 5002355.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

Change history

The following table summarizes some of the most important changes to this topic.



March 15, 2023

Added a feature update in the "Improvements and fixes" section.

April 12, 2023

Added a fix for the first known issue in the "Known issues in this update" section.

Added a second item to the "Known issues in this update" section (cannot create Search service applications).

May 9, 2023

Added a fix for the second known issue in the "Known issues in this update" section.

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