IT Reference & Documentation
Technical reference documentation: verified KB articles and complete Windows Event ID reference.
KB5091596 — Security Update for ASP.NET Core 10.0
KB5091596 is a security update that addresses multiple vulnerabilities in ASP.NET Core 10.0, including CVE-2026-21001 and CVE-2026-21002, affecting authentication bypass and denial of service scenarios on Windows and Linux systems.
KB5091572 — Out-of-band Security Update for Windows 10 Version 1607
KB5091572 is an out-of-band security update released April 19, 2026, that addresses critical vulnerabilities in Windows 10 Version 1607 (Anniversary Update), updating systems to build 14393.9062.
KB5091573 — Out-of-band Security Update for Windows 10 Version 1809
KB5091573 is an out-of-band security update released April 19, 2026, addressing critical vulnerabilities in Windows 10 Version 1809 (OS Build 17763.8647).
KB5083245 — Security Update for SQL Server 2025 CU3
KB5083245 is a security update for Microsoft SQL Server 2025 Cumulative Update 3 (CU3) that addresses critical vulnerabilities in the database engine and related components.
KB5002853 — Security Update for SharePoint Server Subscription Edition
KB5002853 is a security update released on April 14, 2026, that addresses multiple vulnerabilities in SharePoint Server Subscription Edition, including remote code execution and elevation of privilege flaws.
KB5002854 — Security Update for SharePoint Server 2019
KB5002854 is a security update released on April 14, 2026, that addresses multiple vulnerabilities in SharePoint Server 2019, including remote code execution and elevation of privilege issues.
KB5084819 — Security Update for SQL Server 2017 GDR
KB5084819 is a security update for Microsoft SQL Server 2017 GDR that addresses critical vulnerabilities in the database engine and improves overall system security for x64-based systems.
KB5084817 — Security Update for SQL Server 2019 GDR
KB5084817 is a security update released April 14, 2026, for Microsoft SQL Server 2019 General Distribution Release (GDR) that addresses critical security vulnerabilities in the database engine and related components.
KB5084821 — Security Update for SQL Server 2016 SP3 GDR
KB5084821 is a security update released on April 14, 2026, that addresses critical vulnerabilities in Microsoft SQL Server 2016 Service Pack 3 General Distribution Release (GDR) for x64-based systems.
KB5084820 — Security Update for SQL Server 2016 SP3 Azure Connect Feature Pack
KB5084820 is a security update released April 14, 2026, that addresses critical vulnerabilities in SQL Server 2016 SP3 Azure Connect Feature Pack, including remote code execution and privilege escalation issues.
KB5084818 — Security Update for SQL Server 2017 CU31
KB5084818 is a security update for Microsoft SQL Server 2017 Cumulative Update 31 that addresses critical vulnerabilities and security issues affecting x64-based systems.
KB5084814 — Security Update for SQL Server 2025 GDR
KB5084814 is a security update for Microsoft SQL Server 2025 GDR that addresses multiple security vulnerabilities and improves database engine security on x64-based systems.
KB5002861 — Security Update for SharePoint Server 2016
KB5002861 is a security update released on April 14, 2026, that addresses multiple vulnerabilities in SharePoint Server 2016, including remote code execution and elevation of privilege issues.
KB5082421 — Cumulative Update for .NET Framework 4.8.1 for Windows 11 version 26H1
KB5082421 is a cumulative update released on April 14, 2026, that provides security and reliability improvements for .NET Framework 3.5 and 4.8.1 on Windows 11 version 26H1 systems.
KB5082413 — Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10 Version 1809
KB5082413 is a cumulative update released April 14, 2026, that addresses security vulnerabilities and reliability issues in .NET Framework 3.5 and 4.7.2 on Windows 10 Version 1809 and Windows Server 2019 systems.
KB5083252 — Security Update for SQL Server 2022 CU24
KB5083252 is a security update for Microsoft SQL Server 2022 Cumulative Update 24 (CU24) that addresses multiple security vulnerabilities and improves database engine security on x64-based systems.
KB5082417 — Cumulative Update for .NET Framework 3.5 and 4.8.1
KB5082417 is a cumulative update for .NET Framework 3.5 and 4.8.1 that addresses security vulnerabilities and reliability issues on Windows 11 Version 25H2 and Windows Server 2025 systems.
KB5082426 — Cumulative Update for .NET Framework 3.5 and 4.8
KB5082426 is a cumulative update released April 14, 2026, that provides security and reliability improvements for .NET Framework 3.5 and 4.8 on Windows 10 Version 21H2 and 22H2 systems.
KB5082414 — Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1809
KB5082414 is a cumulative update released April 14, 2026, that addresses security vulnerabilities and reliability issues in .NET Framework 3.5 and 4.8 on Windows 10 Version 1809 and Windows Server 2019 systems.
KB5082403 — Security and Quality Rollup for .NET Framework 4.8 on Windows Server 2012
KB5082403 is a security and quality rollup update for .NET Framework 4.8 on Windows Server 2012 and Windows Server 2012 R2 systems, addressing multiple security vulnerabilities and quality improvements released in April 2026.