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Description of the security update for Office Web Apps Server 2013: October 13, 2020

Description

None ## 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-2020-16929](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16929>) * [Microsoft Common Vulnerabilities and Exposures CVE-2020-16931](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16931>) * [Microsoft Common Vulnerabilities and Exposures CVE-2020-16932](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16932>) **Note** To apply this security update, you must have the release version of [Service Pack 1 for Microsoft Office Web Apps Server 2013](<http://support.microsoft.com/kb/2880558>) installed on the computer. ## 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](<https://support.microsoft.com/en-us/help/12373/windows-update-faq>). ### Method 2: Microsoft Update Catalog To get the standalone package for this update, go to the [Microsoft Update Catalog](<http://www.catalog.update.microsoft.com/Search.aspx?q=KB4486689>) 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 icon](https://support.content.office.net/en-us/media/2ae362dc-2179-d733-e930-e231c68a2c4a.png)[Download security update 4486689 for the 64-bit version of Office Web Apps Server 2013](<http://www.microsoft.com/download/details.aspx?familyid=1bce278f-8c60-4bb3-a1f5-65b02e0dbc7b>) ## More information ### Security update deployment information For deployment information about this update, see [security update deployment information: October 13, 2020](<https://support.microsoft.com/en-us/help/20201013>). ### Security update replacement information This security update doesn't replace any previously released update. ### File hash information File name| SHA1 hash| SHA256 hash ---|---|--- WacServer2013-kb4486689-fullfile-x64-glb.exe| 8EC5C5741302D32F2A00A1297F20ACA49E46E98F| A993A200553110E4DA2B34ECFCDAF28076A6FE2D4F436E9ADF35CFEF55C2CAEE File informationDownload [the list of files that are included in security update 4486689](<https://download.microsoft.com/download/2/0/c/20c5de4d-d225-48ac-8694-4b1927bc1e3d/4486689.csv>). ## Information about protection and security Protect yourself online: [Windows Security support](<https://support.microsoft.com/hub/4099151>)Learn how we guard against cyber threats: [Microsoft Security](<https://www.microsoft.com/security>)


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