Description of the security update for Office 2010: December 8, 2020

Summary

This security update resolves Microsoft Excel remote code execution vulnerabilities. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2020-17122.

Note To apply this security update, you must have the release version of Service Pack 2 for Office 2010 installed on the computer.Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2010. It doesn’t apply to the Office 2010 Click-to-Run editions, such as Microsoft Office 2010 Home and Student (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 4486698 for the 32-bit version of Office 2010
• Download security update 4486698 for the 64-bit version of Office 2010

More information

Security update deployment information

For deployment information about this update, see security update deployment information: December 8, 2020.

Security update replacement information

This security update replaces previously released security update 4484530.

File hash information

File name	SHA1 hash	SHA256 hash
mso2010-kb4486698-fullfile-x86-glb.exe	ADFB4ACD283DC1E39FB0011C7E46211C04F99078	A9E568DB32C5B9253646558087072AB7179CFA83216225AF6E372B45E0BB87D5
mso2010-kb4486698-fullfile-x64-glb.exe	BD1D04944BDE1860CA6CEA84FC1701D923AD1810	FABE2F140748816580B28B10D21AF10A8270A419CDBD0D8AAD94A73AC84102D0

File informationThe 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 2010

File identifier	File name	File version	File size	Date	Time
mso.dll.x86	mso.dll	14.0.7263.5000	18,568,888	17-Nov-2020	08:10

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For all supported x64-based versions of Office 2010

File identifier	File name	File version	File size	Date	Time
mso.dll.x64	mso.dll	14.0.7263.5000	24,362,176	17-Nov-2020	08:21
mso.dll.x86	mso.dll	14.0.7263.5000	18,568,888	17-Nov-2020	08:10

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