Description of the security update for Office Online Server: December 11, 2018

Applies to: Office Online Server - duplicate (do not use)

Summary


This security update resolves vulnerabilities in MicrosoftOffice that could allow remote code execution if a user opens a speciallycrafted Office file.  To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8627 and Microsoft Common Vulnerabilities and Exposures CVE-2018-8628.

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

How to get and install the update


Method 1: Microsoft Update

This update is available through Windows Update. When youturn on automatic updating, this update will be downloaded and installedautomatically. For more information about how to turn on automatic updating,see WindowsUpdate: FAQ.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go tothe MicrosoftUpdate Catalog website.

Method 3: Microsoft Download Center

You can get the standalone update package through theMicrosoft Download Center. Follow the installation instructions on the downloadpage to install the update.

Update information


Security update deployment information

For deployment information about this update, see security update deployment information: December 11, 2018.

Security update replacement information

This security update doesn't replace any previously released securityupdate.

File information


File hash information

File nameSHA1 hashSHA256 hash
wacserver2019-kb4011027-fullfile-x64-glb.exeAEC4C49C4016A0C3CF35AD6283CB8F63972B173C7B00F0E20DC6645876448EFB958DB56932CD25C14AB6765857730A6A31A58C5D


File information

For the list of files that are included in the securityupdate 4011027, download the file information.


How to get help and support for this security update


Protect yourself online and at home: WindowsSecurity support 

Help for protecting your Windows-based computer from virusesand malware: MicrosoftSecure

Local support according to your country: InternationalSupport