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Summary

This security update resolves a Microsoft Office remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2024-20673.

Note: To apply this security update, you must have the release version of Microsoft Office 2016 installed on the computer.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?)

Improvements and fixes

After you install KB 5002457 (but not together with KB 5002498), a cross-update dependency is introduced that prevents Office applications from starting. This update eliminates the dependency and allows the applications to start even if both updates are not installed. However, both updates should be installed to address the original security issue.

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 Deployments - Security Update Guide.

Security update replacement information

This security update replaces previously released security update 5002026.

File hash information

File name

SHA256 hash

msodll40ui2016-kb5002469-fullfile-x86-glb.exe

0FFA851ED3F949F8B474B783A70AC01013B513FB072383CE3563E3F510BCDDA7

msodll40ui2016-kb5002469-fullfile-x64-glb.exe

EB9C082078111E84F986406A263B4722CA2C74796B0049F5E38EA78F72EBDE40

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

mso40uires.dll

mso40uires.dll

16.0.4684.1000

3203824

1-Feb-24

05:27

mso40uires.dll.x86

mso40uires.dll

16.0.4684.1000

3203824

1-Feb-24

05:29

mso40uiwin32client.dll.x64

mso40uiwin32client.dll

16.0.5435.1000

9362496

1-Feb-24

05:28

mso40uiwin32client.dll.x86

mso40uiwin32client.dll

16.0.5435.1001

7435136

2-Feb-24

12:07

File identifier

File name

File version

File size

Date

Time

conversion.office.mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

1-Feb-24

05:25

mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

1-Feb-24

05:25

ppt.conversion.mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

ppt.edit.mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

wac.office.mso99lres.dll

mso99lres.dll

16.0.4666.1000

9501416

mso99lres.dll

mso99lres.dll

16.0.4684.1000

9501424

1-Feb-24

05:25

mso99lres.dll.x86

mso99lres.dll

16.0.4684.1000

9501424

1-Feb-24

05:29

mso99lwin32client.dll.x64

mso99lwin32client.dll

16.0.5431.1000

8184888

1-Feb-24

05:28

xlsrv.ecs.mso99lwin32client.dll

mso99lwin32client.dll

16.0.5431.1000

8184888

mso99lwin32client.dll.x86

mso99lwin32client.dll

16.0.5431.1000

5877232

1-Feb-24

05:27

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security

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