Description of the security update for Excel 2010: January 14, 2020

Applies to: Microsoft Office 2010 Service Pack 2Excel 2010


This security update resolves a remote code execution vulnerability that exists in Microsoft Excel software when the software fails to properly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2020-0650 and Microsoft Common Vulnerabilities and Exposures CVE-2020-0651.

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.

More information

Security update deployment information

For deployment information about this update, see security update deployment information: January 14, 2020.

Security update replacement information

This security update replaces previously released update 4484196.

File hash information

File name SHA1 hash SHA256 hash
excel2010-kb4484243-fullfile-x86-glb.exe 43B410D7E7C60575008F9B0B241841B46984FB8B 5BDE5E0D64AC2F9D2FC41B193A6AB0D2D7DF6C24CA66E46FEFE3E729C7927D67
excel2010-kb4484243-fullfile-x64-glb.exe 232CB2EDD740504E5AEF857C66EFB511E06B68AA 02BF6C9FF55AD105259B9388E9F24192470A9C511A4301DAF7A9F9D2FB7482FC

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.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security