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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.

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 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.

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

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 update

Help 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

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