Description of the security update for Office Online Server: May 14, 2019

Summary

This security update resolves a remote code execution vulnerability that exists in Microsoft Word software if the program fails to correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-0953.

Note To apply this security update, you must have the release version of Microsoft Office Online Server installed on the computer.
 

Known issues in this update

  • After you install this security update, Office Online Server logging will be set to Verbose by default. We recommend that you change this setting to Medium by running the following command:

    Set-OfficeWebAppsFarm -LogVerbosity “Medium”

    Note After you run the command, you have to restart the Office Online Service. To do this, run the following command:

    Restart-Service WACSM

Improvements and fixes

This security update contains a fix for the following nonsecurity issue:

  • Some PDF files that are created by using AutoCAD can't be opened in Office Online Server.

How to get and install the update

Method 1: Microsoft Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, 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 icon Download security update 4462169 for the 64-bit version of Office Online Server

More information

Security update deployment information

For deployment information about this update, see security update deployment information: May 14, 2019.

Security update replacement information

This security update replaces previously released security update 4461633.

File hash information

File name

SHA1 hash

SHA256 hash

wacserver2019-kb4462169-fullfile-x64-glb.exe

6558429CDF6A18161263EC89A1E32F0CD7473C73

390D3AFD10D4536284EA596063136874765EDA0A9DC1FA94E359A3C7DEA21635


File information

Download the list of files that are included in security update 4462169.

How to get help and support for this security update

Help for installing updates: Protect yourself online

Help for protecting your Windows-based computer from viruses and malware: Microsoft Security

Local support according to your country: International Support

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