Description of the security update for Office 2010: September 10, 2019

Summary

This security update resolves a security feature bypass vulnerability that exists when Microsoft Office incorrectly handles input. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2019-1264.

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 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 4464566 for the 32-bit version of Office 2010
• Download security update 4464566 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: September 10, 2019.

Security update replacement information

This security update replaces previously released security update 4462223.

File hash information

File name	SHA1 hash	SHA256 hash
mso2010-kb4464566-fullfile-x86-glb.exe	A3AEB8E58D9ED87F6852FCA47458380D5E591759	497287C5BEC125408B8334E5FC1EC548A586592374E14B4846A314CD188600DB
mso2010-kb4464566-fullfile-x64-glb.exe	BD493CC10DEA3639413F8E0D1F77A2525F58A6FA	6342A323DE26228573BDDC915BD2BB6B9464EAD7781AE99B81395F30602BBBF8

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	14.0.7237.5000	18,659,488	16-Aug-2019	11:17

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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	14.0.7237.5000	24,358,560	16-Aug-2019	11:24
mso.dll.x86	mso.dll	14.0.7237.5000	18,659,488	16-Aug-2019	11:17

How to get help and support for this security updateHelp for installing updates: Protect yourself online

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

Local support according to your country: International Support