Description of the security update for Excel 2010: December 8, 2020

Summary

This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the following security advisories:

• Microsoft Common Vulnerabilities and Exposures CVE-2020-17123
• Microsoft Common Vulnerabilities and Exposures CVE-2020-17125
• Microsoft Common Vulnerabilities and Exposures CVE-2020-17126
• Microsoft Common Vulnerabilities and Exposures CVE-2020-17127
• Microsoft Common Vulnerabilities and Exposures CVE-2020-17128
  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 4493148 for the 32-bit version of Excel 2010
• Download security update 4493148 for the 64-bit version of Excel 2010

More information

Security update deployment information

For deployment information about this update, see security update deployment information: December 8, 2020.

Security update replacement information

This security update replaces previously released security update 4486743.

File hash information

File name	SHA1 hash	SHA256 hash
excel2010-kb4493148-fullfile-x86-glb.exe	55B58DE816CEF94F52129C46416FBDF46D12CE05	8F07DF7C9E99C8E68AECD3E7D347340645D2F91BC34646D3060F29A8C4B5A7E9
excel2010-kb4493148-fullfile-x64-glb.exe	628F9B7808194CDA8122E03058BA9AAE12513F66	15D66CB22F4C9B2EC6D5FE1850C8E16A6EA23144E048B24E03BD1BEEDF579634

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 Excel 2010

File identifier	File name	File version	File size	Date	Time
excel.exe	excel.exe	14.0.7263.5000	20,420,224	17-Nov-2020	08:04
excel.man	excel.exe.manifest		1,194	06-Nov-2009	12:00
xl12cnv.exe	excelcnv.exe	14.0.7263.5000	17,857,152	12-Nov-2020	04:17
xlcall32.dll	xlcall32.dll	14.0.7162.5000	10,432	13-Oct-2015	07:52
xlicons.exe	xlicons.exe	14.0.7120.5000	1,480,360	05-Mar-2014	07:06

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For all supported x64-based versions of Excel 2010

File identifier	File name	File version	File size	Date	Time
excel.exe	excel.exe	14.0.7263.5000	27,677,816	17-Nov-2020	08:05
excel.man	excel.exe.manifest		1,196	06-Nov-2009	12:23
xl12cnv.exe	excelcnv.exe	14.0.7263.5000	25,072,760	12-Nov-2020	04:30
xlcall32.dll	xlcall32.dll	14.0.7162.5000	10,944	13-Oct-2015	08:00
xlicons.exe	xlicons.exe	14.0.7120.5000	1,480,360	05-Mar-2014	07:06

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