Summary

This security update resolves a Microsoft Excel Remote Code Execution Vulnerability, and Word Remote Code Execution Vulnerability. To learn more about the vulnerabilities, see the following security advisories:

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

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: April 13, 2021.

Security update replacement information

This security update replaces previously released security update 4493234.

File hash information

File name

SHA1 hash

SHA256 hash

WacServer2013-kb4504729-fullfile-x64-glb.exe

74FF731FAEF30178C78EA4D713A7AE68C1D5930F

7F5211842D3009F2EB20337BF0D0811CB8EE8D137E70BA2E9C9C0E7494595598

File information

Download the list of files that are included in security update 4504729.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×