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## Summary

This security update resolves a Microsoft SharePoint Server elevation of privilege vulnerability. To learn more about the vulnerability, see ​​​​​​​[Microsoft Common Vulnerabilities and Exposures CVE-2023-21717]().

**Notes: **

* This is build **16.0.5383.1000** of the security update package.
* To apply this security update, you must have the release version of Microsoft SharePoint Enterprise Server 2016 installed on the computer.

This public update delivers Feature Pack 2 for SharePoint Server 2016. Feature Pack 2 contains the following feature:

* SharePoint Framework (SPFx)
This public update also delivers all the features that were included in Feature Pack 1 for SharePoint Server 2016, including:
* Administrative Actions Logging
* MinRole enhancements
* SharePoint Custom Tiles
* Hybrid Taxonomy
* OneDrive API for SharePoint on-premises
* OneDrive for Business modern user experience (available to Software Assurance customers)
The OneDrive for Business modern user experience requires an active Software Assurance contract at the time that the experience is enabled, either by installation of the public update or by manual enablement. If you don’t have an active Software Assurance contract at the time of enablement, you must turn off the OneDrive for Business modern user experience.For more information, see the following Microsoft Docs articles:
* [New features included in the November 2016 Public Update for SharePoint Server 2016 (Feature Pack 1)]()
* [New features included in the September 2017 Public Update for SharePoint Server 2016 (Feature Pack 2)]()

## Improvements and fixes

This security update contains a fix for the following nonsecurity issue in SharePoint Enterprise Server 2016:

* Fixes an issue in which blocked file extensions cause errors on folder and subsite creation and accessing.

## 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.

* [Download security update 5002350 for the 64-bit version of SharePoint Enterprise Server 2016]()

## 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 [5002338]().

### File hash information

File name| SHA256 hash
—|—
sts2016-kb5002350-fullfile-x64-glb.exe| 0678596B5A5A3FB7DA489B9FF038338A145FA4C1BD1AE82E9D104E0FC0E49830

### File information

Download [the list of files that are included in security update 5002350]().

## Information about protection and security

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