Microsoft Updates And Notifications for January 2021

ronjor · Jan 1, 2021

December 2020 updates for Microsoft Office

Applies to: Excel 2016 Office Standard 2016 Office Professional 2016 More
Microsoft released the following security and nonsecurity updates for Office in December 2020. These updates are intended to help our customers keep their computers up-to-date. We recommend that you install all updates that apply to you
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guest · Jan 5, 2021

Microsoft Office January updates fix Outlook crash issues
January 5, 2021
https://www.bleepingcomputer.com/ne...ice-january-updates-fix-outlook-crash-issues/

Microsoft has released the January 2021 non-security Microsoft Office updates with fixes for known issues impacting Windows Installer (MSI) editions of Office 2016 products.

Microsoft has also released non-security updates in Current Channel releases for Microsoft 365 Apps to address Excel crashes and Outlook hangs.
The KB4493166 update addresses an issue causing users to experience recurrent crashes while using Outlook 2016. [...]
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January 2021 non-security updates
This month's Office non-security updates can be manually installed from the Download Center or automatically by using the Microsoft Update service.
The updates only apply to perpetual versions of Office using Microsoft Installer (.msi)-based installers and do not apply to Microsoft 365 Apps.

The full list of updates and the Office products they apply to is embedded below.
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Latest non-security updates for versions of Office that use Windows Installer (MSI) (January 5, 2021)

anon · Jan 12, 2021

Microsoft Windows Security Updates January 2021 overview
https://www.ghacks.net/2021/01/12/microsoft-windows-security-updates-january-2021-overview/

Executive Summary

Microsoft released security updates for all supported client and server Windows products.

No critically rated vulnerabilities for client and server versions of Windows.

Security updates are also available for Microsoft Office, Microsoft Edge, Azure, Visual Studio, Windows Codecs Library, SQL Server, Microsoft Malware Protection Engine, .NET Core, .NET Repository, and ASP .NET

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Microsoft January 2021 Patch Tuesday fixes 83 flaws, 1 zero-day
https://www.bleepingcomputer.com/ne...der-antivirus-zero-day-exploited-in-the-wild/

ronjor · Jan 12, 2021

Security Update Guide 12 Jan 2021
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
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https://msrc.microsoft.com/update-guide

guest · Jan 14, 2021

Office January security updates fix remote code execution bugs
January 14, 2021
https://www.bleepingcomputer.com/ne...urity-updates-fix-remote-code-execution-bugs/

Microsoft addresses important severity remote code execution vulnerabilities affecting multiple Office products in the January 2021 Office security updates released during this month's Patch Tuesday.

In total, this month the company released 26 security updates and 5 cumulative updates for 7 different products, fixing 11 vulnerabilities that could allow attackers to escalate privileges or execute arbitrary code remotely on systems running vulnerable software.
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List of patched Office security vulnerabilities
Office security updates published as part of the January 2021 Patch Tuesday address bugs exposing Windows systems running vulnerable Click to Run and Microsoft Installer (.msi)-based editions of Microsoft Office products to remote code execution (RCE) attacks.

Microsoft rated the six RCE bugs patched this month as Important severity issues since they could enable attackers to execute arbitrary code in the context of the currently logged-in user.
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January 2021 Microsoft Office security updates
Microsoft Office security updates are delivered through the Microsoft Update platform and via the Download Center.
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Microsoft Updates And Notifications for January 2021

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