Description of the security update for Office 2010: April 9, 2019

Applies to: Microsoft Office 2010 Service Pack 2


This security update resolves a remote code execution vulnerability that exists when the Microsoft Office Access Connectivity Engine incorrectly handles objects in memory. To learn more about the vulnerability, see the following: 

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 365 Home (see What version of Office am I using?).

How to get and install the update

Method 1: Microsoft Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, 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: April 9, 2019.

Security update replacement information

This security update replaces previously released security update 4462226.

File hash information

File name SHA1 hash SHA256 hash
ace2010-kb4464520-fullfile-x86-glb.exe 205D73600DD48911297DE61494AF6C4A77D09EAF A59602A34B3299C9CDB807EA30B0BC419420CA979A2DE037D8E146845705FA11
ace2010-kb4464520-fullfile-x64-glb.exe BE378031DCFB48B0A53071523D869B5C29A369D3 0AF974961D8A096CEF12DC9ABB2166A1B0BE771F1601F60133D7368D52F2933D

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.

How to get help and support for this security update

Help for installing updates: Protect yourself online

Help for protecting your Windows-based computer from viruses and malware: Microsoft Security

Local support according to your country: International Support