Description of the security update for Office Web Apps Server 2013: January 9, 2018


This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2018-0797.

Note To apply this security update, you must have the release version of Service Pack 1 for Microsoft Office Web Apps Server 2013 installed on the computer.

How to get and install the update

Method 1: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Method 2: Microsoft Download Center

You can get the stand-alone 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: January 9, 2018.

Security update replacement information

This security update replaces previously released security update KB 4011247.

File hash information

Package Name Package Hash SHA 1 Package Hash SHA 2
wacserver2013-kb4011648-fullfile-x64-glb.exe 49E334AA4F2FBA10CD77B8FF5745EB48752A56B6 E4CDA2ADB8064185E4A51850973BCF17E1CF94208B45B52A6713E499E159A556

File information

For the list of files that cumulative update 4011648 contains, download the file information for update KB 4011648.

How to get help and support for this security update

Help for installing updates: Windows Update FAQ

Security solutions for IT professionals: Security Support and Troubleshooting

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

Local support according to your country: International Support

Propose a feature or provide feedback on SharePoint: SharePoint User Voice portal