Description of the security update for Office 2013: June 8, 2021 (KB5001955)

Summary

This security update resolves a Microsoft Excel remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-31939.

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

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2013. It doesn’t apply to the Office 2013 Click-to-Run editions, such as Microsoft Office 365 Home (see What version of Office am I using?).

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 5001955 for the 32-bit version of Office 2013
• Download security update 5001955 for the 64-bit version of Office 2013

More information

Security update deployment information

For deployment information about this update, see Security update deployment information: June 8, 2021.

Security update replacement information

This security update replaces previously released security update 5001927.

File hash information

File name		SHA256 hash
graph2013-kb5001955-fullfile-x86-glb.exe		E573C2E753CEEA03D3704A89D9295DEEF7B307523CB33C3BE90B7B2039600E1A
graph2013-kb5001955-fullfile-x64-glb.exe		ED69318ABC82C0D9D4F7551A751F1B8587C93882351795040A54F46B678045FA

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

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For all supported x86-based versions of Office 2013

File identifier	File name	File version	File size	Date	Time
graph.exe	graph.exe	15.0.5353.1000	4525960	12-May-21	12:44

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For all supported x64-based versions of Office 2013

File identifier	File name	File version	File size	Date	Time
graph.exe	graph.exe	15.0.5353.1000	6139296	12-May-21	12:44

Information about protection and security

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