Description of the security update for Office 2010: April 13, 2021 (KB4493215)

Summary

This security update resolves a Microsoft Word remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2021-28453.

**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 4493215 for the 32-bit version of Office 2010
• Download security update 4493215 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: April 13, 2021.

Security update replacement information

This security update replaces previously released security update 4493142.

File hash information

File name	SHA1 hash	SHA256 hash
KB24286772010-kb4493215-fullfile-x86-glb.exe	2AEA5A061AA3BB63B0A6F758B3D8242A579BCA6A	D3122F016FD4A473EA36B06B846729B971397C09BC42AC8B60E694E1BAE82BBC
KB24286772010-kb4493215-fullfile-x64-glb.exe	F04DFB54868AACAE66099C2C6396AFF4D973EBB2	779BCCBD656D3EEA2877C7104A47B3853122A93E035E9E7376B46C5D8F2D669C

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 2010

File identifier	File name	File version	File size	Date	Time
wwlibcxm.dll	wwlibcxm.dll	14.0.7268.5000	19,053,696	12-Mar-2021	07:40

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For all supported x64-based versions of Office 2010

File identifier	File name	File version	File size	Date	Time
wwlibcxm.dll	wwlibcxm.dll	14.0.7268.5000	24,545,904	12-Mar-2021	07:36

Information about protection and security

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