Summary

This security update resolves a remote code execution vulnerability that exists in Microsoft Excel software if the software does not correctly handle objects in memory. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2020-1193.

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: September 8, 2020.

Security update replacement information

This security update replaces previously released security update 4484373.

File hash information

File name

SHA1 hash

SHA256 hash

mso2010-kb4484530-fullfile-x86-glb.exe

126C3E697C23D0ED32DBCC1EEDFFB8A074237DFF

5F7EE207A12169D4B35E0BE5C4BEF4824C5C05E00CAAAE651EC6CFDD3802A82E

mso2010-kb4484530-fullfile-x64-glb.exe

6C1C7FC3298679610EF7423884BAAB622EAAB9B1

0FC2094B65E45D284953CA239E98FFE448D1512FCA7977B01BE3FD4D72E734BA


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

14.0.7258.5000

18,428,592

27-Aug-2020

12:58

File identifier

File name

File version

File size

Date

Time

mso.dll.x64

mso.dll

14.0.7258.5000

24,362,160

27-Aug-2020

01:08

mso.dll.x86

mso.dll

14.0.7258.5000

18,428,592

27-Aug-2020

12:58

Information about protection and security

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Learn how we guard against cyber threats: Microsoft Security

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