Description of the security update for Office Online Server: August 13, 2019

Applies to: Office Online Server

Summary


This security update resolves a remote code execution vulnerability that exists in Microsoft Word software if it does not correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1201 and Microsoft Common Vulnerabilities and Exposures CVE-2019-1205.

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

Improvements and fixes


This security update fixes the following issues in Office Online Server:

  • Fix: You can't share PowerPoint presentations through Skype for Business.
  • Fix: PowerPoint Online can't open files from SharePoint document libraries in Reading view .

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 security update deployment information: August 13, 2019.

Security update replacement information

This security update replaces previously released security update 4475511.

File hash information

File name SHA1 hash SHA256 hash
wacserver2019-kb4475528-fullfile-x64-glb.exe 7007C757FEFB56FB3CECF7DFC0770ABC73A41FE3 3799687D877D405497A6F1921EA11DBDD699C4A48A13B023617DB67C1225EC4F


File information

Download the list of files that are included in security update 4475528.

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