Description of the security update for Office Web Apps Server 2013: February 9, 2021 (KB4493204)

Summary

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

• Microsoft Common Vulnerabilities and Exposures CVE-2021-24067
• Microsoft Common Vulnerabilities and Exposures CVE-2021-24068
• Microsoft Common Vulnerabilities and Exposures CVE-2021-24069
• Microsoft Common Vulnerabilities and Exposures CVE-2021-24070

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.

• Download security update 4493204 for the 64-bit version of Office Web Apps Server 2013

More information

Security update deployment information

For deployment information about this update, see security update deployment information: February 9, 2021.

Security update replacement information

This security update replaces previously released security update 4493171.

File hash information

File name	SHA1 hash	SHA256 hash
WacServer2013-kb4493204-fullfile-x64-glb.exe	EB71E8C60D93B0B978FC206D4C62FD1FF33B0BAD	9395B5534D951F0706F31D58F70496476E917CB254B8014CD4B5B351B0A14031

File information

Download the list of files that are included in security update 4493204.

Information about protection and security

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