Description of the security update for Office Online Server: September 08, 2026 (KB5002910)

Description of the security update for Office Online Server: September 08, 2026 KB5002910 Applies To Office Online Server Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the...

Description of the security update for PowerPoint 2016: September 08, 2026 (KB5002920)

Description of the security update for PowerPoint 2016: September 08, 2026 KB5002920 Applies To PowerPoint 2016 Summary This security update resolves a Powerpoint Information Disclosure vulnerability. To learn more about the vulnerability, see the following security advisories: Microsoft Common...

Description of the security update for Word 2016: September 08, 2026 (KB5002923)

Description of the security update for Word 2016: September 08, 2026 KB5002923 Applies To Word 2016 Summary This security update resolves a Microsoft Word Remote Code Execution vulnerability and Microsoft Word Information Disclosure vulnerability. To learn more about the vulnerabilities, see the...

Description of the security update for Excel 2016: September 08, 2026 (KB5002914)

Description of the security update for Excel 2016: September 08, 2026 KB5002914 Applies To Excel 2016 Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the vulnerabilities, see th...

Description of the security update for Outlook 2016: September 08, 2026 (KB5002919)

Description of the security update for Outlook 2016: September 08, 2026 KB5002919 Applies To Outlook 2016 Summary This security update resolves a Microsoft Outlook Spoofing vulnerability, Microsoft Outlook Remote Code Execution vulnerability, and Microsoft Office Word Remote Code Execution the...

Description of the security update for Office 2016: September 08, 2026 (KB5002913)

Description of the security update for Office 2016: September 08, 2026 KB5002913 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Access Remote Code...

Description of the security update for Microsoft Exchange Server 2016 CU23: September 8, 2026 (KB5121611)

Description of the security update for Microsoft Exchange Server 2016 CU23: September 8, 2026 KB5121611 Applies To Exchange Server 2016 This security update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities a...

Description of the security update for Office 2016: September 08, 2026 (4011160)

Description of the security update for Office 2016: September 08, 2026 4011160 Applies To Office Professional Plus 2016 Office Professional 2016 Office Standard 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves Microsoft Office Excel Information...

Description of the security update for Office 2016: September 08, 2026 (KB5002916)

Description of the security update for Office 2016: September 08, 2026 KB5002916 Applies To Office Professional Plus 2016 Office Professional 2016 Office Standard 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office remote code...

KB5122874: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: September 8, 2026

KB5122874: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: September 8, 2026 Applies To Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Server 2016, all editions Important Free support for Windows 10 Enterprise 2016 LTSB and Windows Server 2016 will soon end. Fo...

KB5122774 - Description of the security update for SQL Server 2017 CU31: September 8, 2026

KB5122774 - Description of the security update for SQL Server 2017 CU31: September 8, 2026 Applies To SQL Server 2017 on Linux SQL Server 2017 on Windows Release date: September 8, 2026 Version: 14.0.3550.4 Summary Known issues in this update Improvements and fixes included in this update How to...

September 8, 2026-KB5126043 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019

September 8, 2026-KB5126043 Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.7.2 The September 8, 2026 update for Windows 10, version 1809 and Windows Serv...

KB5122773 - Description of the security update for SQL Server 2019 GDR: September 8, 2026

KB5122773 - Description of the security update for SQL Server 2019 GDR: September 8, 2026 Applies To SQL Server 2019 on Windows SQL Server 2019 on Linux Release date: September 8, 2026 Version: 15.0.2190.7 Summary Known issues in this update Improvements and fixes included in this update How to...

September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 (KB5126045)

September 8, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 R2 KB5126045 Applies To .NET Note Applies to: Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2 Important The...

September 8, 2026-KB5126424 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2

September 8, 2026-KB5126424 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 23H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows 11, version 23H2 includes security and cumulative...

September 8, 2026-KB5126422 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022

September 8, 2026-KB5126422 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows Server 2022 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows Server 2022 includes security and cumulative reliability...

September 8, 2026-KB5126421 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2

September 8, 2026-KB5126421 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 10 Version 21H2 and Windows 10 Version 22H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update for Windows 10 Version 21H2 and Windows 10...

.NET 10.0 Update - September 8, 2026

.NET 10.0 Update - September 8, 2026 .NET 10.0 has been refreshed with the latest update as of September 8, 2026. This update contains security fixes. See the release notes for details about updated packages. .NET 10.0 servicing updates are upgrades. The latest servicing update for 10.0 will remo...

.NET 9.0 Update - September 8, 2026

.NET 9.0 Update - September 8, 2026 .NET 9.0 has been refreshed with the latest update as of September 8, 2026. This update contains security fixes. See the release notes for details about updated packages. .NET 9.0 servicing updates are upgrades. The latest servicing update for 9.0 will remove t...

.NET 8.0 Update - September 8, 2026

.NET 8.0 Update - September 8, 2026 .NET 8.0 has been refreshed with the latest update as of September 8, 2026. This update contains security fixes. See the release notes for details about updated packages. .NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove t...

September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1

September 8, 2026-KB5126053 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 4.8.1 The September 8, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvement...

September 8, 2026-KB5126052 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2, Windows 11, version 25H2 and Microsoft server operating system 24H2

September 8, 2026-KB5126052 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 24H2, Windows 11, version 25H2 and Microsoft server operating system 24H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8.1 The September 8, 2026 update...

September 8, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 (KB5126051)

September 8, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 KB5126051 Applies To .NET Note Applies to: Microsoft .NET Framework 4.8 Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled...

September 8, 2026-KB5126050 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2022

September 8, 2026-KB5126050 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows Server 2022 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8 The September 8, 2026 update for Windows Server 2022 includes security and cumulative reliability...

September 8, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 (KB5126049)

September 8, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 KB5126049 Applies To .NET Note Applies to: Microsoft .NET Framework 4.8 Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device...

September 8, 2026-KB5126048 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1809 and Windows Server 2019

September 8, 2026-KB5126048 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1809 and Windows Server 2019 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8 The September 8, 2026 update for Windows 10, version 1809 and Windows Server...

September 8, 2026-KB5126047 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016

September 8, 2026-KB5126047 Cumulative Update for .NET Framework 4.8 for Windows 10, version 1607 and Windows Server 2016 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 4.8 The September 8, 2026 update for Windows 10, version 1607 and Windows Server 2016 includes...

September 8, 2026-KB5126046 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 and Windows 10 Version 22H2

September 8, 2026-KB5126046 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 21H2 and Windows 10 Version 22H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5 and 4.8 The September 8, 2026 update for Windows 10 Version 21H2 and Windows 10...

KB5123602: Servicing stack update for Windows Server 2012: September 8, 2026

KB5123602: Servicing stack update for Windows Server 2012: September 8, 2026 Applies To Windows Server 2012 ESU Summary This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates SSU makes sure that you have a robus...

KB5123038: Cumulative security update for Internet Explorer: September 8, 2026

KB5123038: Cumulative security update for Internet Explorer: September 8, 2026 Applies To Windows Server 2012 R2 ESU Windows Server 2012 ESU Note Important Certain versions of Microsoft Internet Explorer have reached the end of support. Note that some versions of Internet Explorer may be supporte...

KB5123499: Servicing stack update for Windows Server 2012 R2: September 8, 2026

KB5123499: Servicing stack update for Windows Server 2012 R2: September 8, 2026 Applies To Windows Server 2012 R2 ESU Summary This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates SSU makes sure that you have a...

Description of the security update for Visio 2016: September 08, 2026 (KB5002646)

Description of the security update for Visio 2016: September 08, 2026 KB5002646 Applies To Visio Professional 2016 Visio Standard 2016 Summary This security update resolves a Microsoft Office remote code execution vulnerability. To learn more about the vulnerability, see Microsoft Common...

September 8, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 (KB5126148)

September 8, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 R2 KB5126148 Applies To .NET Note Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microso...

September 8, 2026-KB5126144 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019

September 8, 2026-KB5126144 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10, version 1809 and Windows Server 2019 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5, 4.7.2 and 4.8 Summary This article describes the security and cumulative updat...

September 8, 2026-KB5126145 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2

September 8, 2026-KB5126145 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 21H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1...

September 8, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB5126147)

September 8, 2026-Security and Quality Rollup for .NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 KB5126147 Applies To .NET Note Applies to: Microsoft .NET Framework 3.5 Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft...

September 8, 2026-KB5126149 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows Server 2022

September 8, 2026-KB5126149 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows Server 2022 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1 for...

Extended Security Updates (ESU) Licensing Preparation Package for Windows 10

Extended Security Updates ESU Licensing Preparation Package for Windows 10 Applies To Windows 10 ESU Original publish date: September 8, 2026 KB ID: 5126256 Introduction On October 14, 2025, support for Windows 10 ended. This means that Microsoft no longer provides security and feature updates or...

September 8, 2026-KB5126146 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2

September 8, 2026-KB5126146 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 Applies To .NET Note Release Date: September 8, 2026 Version: .NET Framework 3.5, 4.8 and 4.8.1 Summary This article describes the security and cumulative update for 3.5, 4.8 and 4.8.1...

Update Rollup 4 for System Center 2022 Operations Manager

Update Rollup 4 for System Center 2022 Operations Manager Applies To System Center 2022 Operations Manager Introduction This article describes the latest update for System Center Operations Manager 2022. This article also contains the installation instructions and describes the fixes, improvement...

Description of the security update for Office 2016: September 08, 2026 (KB5002917)

Description of the security update for Office 2016: September 08, 2026 KB5002917 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office remote code...

Description of the security update for Office 2016: September 08, 2026 (KB5002915)

Description of the security update for Office 2016: September 08, 2026 KB5002915 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office Remote Code...

Description of the security update for Office 2016: September 08, 2026 (KB5002918)

Description of the security update for Office 2016: September 08, 2026 KB5002918 Applies To Office Standard 2016 Office Professional 2016 Office Professional Plus 2016 Office Home and Business 2016 Office Home and Student 2016 Summary This security update resolves a Microsoft Office remote code...

August 27, 2026-KB5122386 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1

August 27, 2026-KB5122386 Cumulative Update for .NET Framework 4.8.1 for Windows 11, version 26H1 Applies To .NET Note Release Date: August 27, 2026 Version: .NET Framework 4.8.1 The August 27, 2026 update for Windows 11, version 26H1 includes security and cumulative reliability improvements in...

August 27, 2026-KB5122385 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2

August 27, 2026-KB5122385 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 25H2 and Microsoft server operating system 24H2 Applies To .NET Note Release Date: August 27, 2026 Version: .NET Framework 3.5 and 4.8.1 The August 27, 2026 update for Windows 11, version 25H2 and...

August 27, 2026—KB5120996 (OS Build 28000.2804) Preview

August 27, 2026—KB5120996 OS Build 28000.2804 Preview Applies To Windows 11 version 26H1, all editions This cumulative update for Windows 11, version 26H1 KB5120996, includes production-quality improvements. Announcements and messages This section provides key notifications related to this releas...

August 27, 2026—KB5120998 (OS Builds 26200.9278 and 26100.9278) Preview

August 27, 2026—KB5120998 OS Builds 26200.9278 and 26100.9278 Preview Applies To Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This cumulative update for Windows 11, version 25H2 and 24H2 KB5120998, includes production-quality improvements. Announcements and messages...

Update Rollup 4 for System Center 2022 Orchestrator

Update Rollup 4 for System Center 2022 Orchestrator Applies To: System Center 2022 Orchestrator Introduction This article describes the issues that are fixed in Update Rollup 4 for Microsoft System Center Orchestrator 2022. This article also contains the installation instructions for this update...

Description of the security update for Word 2016: August 11, 2026 (KB5002901)

Description of the security update for Word 2016: August 11, 2026 KB5002901 Applies To Word 2016 Summary This security update resolves a Microsoft Word Remote Code Execution vulnerability and Microsoft Word Information Disclosure vulnerability. To learn more about the vulnerabilities, see the...

Azure File Sync Agent V23.1 - September 2026

Azure File Sync Agent V23.1 - September 2026 This article describes the improvements and issues that are fixed in the Azure File Sync Agent v23.1 release that is dated September 2026. Additionally, this article contains installation instructions for this release. Improvements and issues that are...