IT Reference & Documentation

KB5079473 — March 2026 Cumulative Update for Windows 10 and Windows 11

KB5079473 is a March 2026 cumulative update that addresses multiple security vulnerabilities, improves Windows Search performance, and resolves compatibility issues with modern hardware on Windows 10 and Windows 11 systems.

KB5084597 — March 2026 Out-of-Band Hotpatch Security Update

KB5084597 is an out-of-band hotpatch security update released March 13, 2026, addressing critical vulnerabilities in Windows 11 Version 24H2 and 25H2 systems for both x64 and ARM64 architectures.

KB5074994 — Security Update for Microsoft Exchange Server 2019 CU14

KB5074994 is a February 2026 security update that addresses multiple vulnerabilities in Microsoft Exchange Server 2019 Cumulative Update 14, including remote code execution and elevation of privilege flaws.

KB5078752 — March 2026 Security Update for Windows 10 Version 1809 and Windows Server 2019

KB5078752 is a March 2026 security update that addresses multiple vulnerabilities in Windows 10 Version 1809 and Windows Server 2019, including fixes for Windows Kernel, Remote Desktop Services, and Windows Graphics components.

KB5078766 — March 2026 Security Update for Windows Server 2022

KB5078766 is a March 2026 security update that addresses multiple vulnerabilities in Windows Server 2022, including critical remote code execution flaws and privilege escalation issues affecting server infrastructure.

KB5078737 — March 2026 Security Hotpatch for Windows Server 2022

KB5078737 is a March 2026 security hotpatch update for Windows Server 2022 that addresses multiple security vulnerabilities without requiring a system restart, updating the OS build to 20348.4830.

KB5078734 — March 2026 Security Update for Windows Server 2022 23H2

KB5078734 is a March 2026 security update that addresses multiple vulnerabilities in Windows Server 2022 23H2, including critical remote code execution flaws and privilege escalation issues affecting Server Core installations.

KB5079420 — March 2026 Hotpatch Security Update for Windows 11

KB5079420 is a March 2026 hotpatch security update that addresses critical vulnerabilities in Windows 11 Version 24H2 and 25H2 systems, delivering security fixes without requiring a system restart.

KB5079466 — March 2026 Cumulative Update for Windows 11 Version 26H1

KB5079466 is a March 2026 cumulative update that addresses security vulnerabilities and system stability issues in Windows 11 Version 26H1, updating systems to OS Build 28000.1719.

KB5078736 — March 2026 Security Hotpatch for Windows Server 2025

KB5078736 is a March 2026 security hotpatch update for Windows Server 2025 that addresses critical vulnerabilities without requiring a system restart, updating the OS build to 26100.32463.

KB5078938 — March 2026 Security Update for Windows 10 Version 1607 and Windows Server 2016

KB5078938 is a March 2026 security update that addresses multiple vulnerabilities in Windows 10 Version 1607 and Windows Server 2016, including critical fixes for Windows kernel and networking components.

KB5078774 — March 2026 Monthly Rollup for Windows Server 2012 R2

KB5078774 is a March 2026 monthly rollup update for Windows Server 2012 R2 that includes security fixes, reliability improvements, and compatibility updates for legacy server environments.

KB5078775 — March 2026 Monthly Rollup for Windows Server 2012

KB5078775 is a March 2026 monthly rollup update that addresses multiple security vulnerabilities, system stability issues, and performance improvements for Windows Server 2012 and Windows Server 2012 Server Core installations.

KB5002850 — Security Update for SharePoint Server 2016

KB5002850 is a March 2026 security update that addresses multiple vulnerabilities in SharePoint Server 2016, including remote code execution and elevation of privilege flaws affecting SharePoint Enterprise Server 2016 installations.

KB5002845 — Security Update for SharePoint Server 2019

KB5002845 is a March 2026 security update that addresses multiple vulnerabilities in SharePoint Server 2019, including remote code execution and elevation of privilege flaws affecting SharePoint Foundation and Server components.

KB5002846 — Security Update for Office Online Server

KB5002846 is a March 2026 security update that addresses multiple vulnerabilities in Office Online Server, including remote code execution and information disclosure flaws affecting document rendering and authentication components.

KB5002849 — Security Update for Microsoft Excel 2016

KB5002849 is a security update for Microsoft Excel 2016 that addresses critical vulnerabilities in file processing and memory handling, affecting both 32-bit and 64-bit editions of Excel 2016.

KB5077468 — Security Update for SQL Server 2025 GDR

KB5077468 is a security update released March 10, 2026, that addresses critical vulnerabilities in Microsoft SQL Server 2025 for x64-based systems, including remote code execution and privilege escalation flaws.

KB5077466 — Security Update for SQL Server 2025 CU2

KB5077466 is a security update for Microsoft SQL Server 2025 Cumulative Update 2 (CU2) that addresses multiple security vulnerabilities and improves database engine security on x64-based systems.

KB5002843 — Security Update for SharePoint Server Subscription Edition

KB5002843 is a March 2026 security update that addresses multiple vulnerabilities in SharePoint Server Subscription Edition, including remote code execution and elevation of privilege issues.