Knowledgebase Catalog

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KB# Last Updated Description
KB5082417 Apr 30, 2026 KB5082417 is a cumulative security and reliability update for .NET Framework 3.5 and 4.8.1 released on April 14, 2026, targeting Windows 11 version 25H2 and Microsoft Server Operating System 24H2. This patch addresses multiple security vulnerabilities and includes quality improvements…
KB5079233 Apr 30, 2026 KB5079233 is a servicing stack update (SSU) released on March 10, 2026, specifically designed for Windows Server 2012 R2 Extended Security Updates (ESU) environments. This update addresses the foundational infrastructure responsible for delivering and installing Windows updates on affected systems.…
KB5082142 Apr 30, 2026 KB5082142 is a cumulative security update for Windows Server 2022 released on April 14, 2026, with OS Build 20348.5020. This update incorporates the latest security patches and quality improvements from the previous month's optional preview release (KB5078766). The update addresses…
KB5084069 Apr 30, 2026 KB5084069 is an April 2026 security and quality rollup update designed for the .NET Framework across multiple versions (3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, and 4.8) running on Windows Server 2012. This cumulative update addresses multiple security vulnerabilities and includes quality…
KB5082426 Apr 30, 2026 KB5082426 is a cumulative update for .NET Framework 3.5 and 4.8 released on April 14, 2026, targeting Windows 10 Version 21H2 and Windows 10 Version 22H2 systems. This update was revised on April 22, 2026, to include a known issues…
KB5083817 Apr 30, 2026 KB5083817 is a Safe OS Dynamic Update released on April 14, 2026, specifically designed for Windows 11 version 26H1 across all editions. This update focuses on enhancing the Windows Recovery Environment (WinRE), which is the critical recovery and troubleshooting component…
KB5082200 Apr 30, 2026 KB5082200 is an April 2026 security update for Windows 10 Extended Security Updates (ESU), Windows 10 Enterprise LTSC 2021, and Windows 10 IoT Enterprise LTSC 2021, bringing systems to OS builds 19045.7184 and 19044.7184. This cumulative update addresses 167 security…
KB5082425 Apr 30, 2026 KB5082425 is an April 2026 cumulative update specifically designed for .NET Framework 3.5 and 4.8.1 running on Windows Server 2022. This patch represents Microsoft's regular maintenance cycle for the .NET Framework ecosystem, combining both security hardening and operational reliability enhancements.…
KB5083769 Apr 30, 2026 KB5083769 is a cumulative security update released on April 14, 2026, for Windows 11 versions 25H2 and 24H2, with OS builds 26200.8246 and 26100.8246. This update consolidates security fixes and quality improvements from multiple previous updates released throughout March 2026,…
KB5082427 Apr 30, 2026 KB5082427 is a cumulative update released on April 14, 2026, targeting .NET Framework 3.5 and 4.8 on Windows Server 2022 systems. This patch consolidates multiple security fixes and reliability enhancements into a single deployment package designed for enterprise server environments.…
KB5082052 Apr 30, 2026 KB5082052 is a cumulative security update released on April 14, 2026, for Windows 11 version 23H2 (OS Build 22631.6936). This patch represents Microsoft's monthly security maintenance cycle, incorporating the latest vulnerability fixes and quality improvements alongside non-security updates from the…
KB5086096 Apr 30, 2026 KB5086096 represents a Microsoft patch update, though specific details about this particular update are currently limited in publicly available sources. The Microsoft Support page for this KB appears to be experiencing accessibility issues, preventing direct retrieval of comprehensive patch documentation.…
KB5091571 Apr 30, 2026 KB5091571 is an out-of-band cumulative update for Windows Server, version 23H2, released on April 19, 2026 (OS Build 25398.2276). This emergency patch was issued to address critical issues that emerged following the April 14, 2026 security update (KB5082060). The update…
KB5082089 Apr 30, 2026 KB5082089 is a servicing stack update (SSU) released on April 14, 2026, designed for Windows 10 version 1607 and Windows Server 2016 across all editions. This update addresses critical infrastructure components that manage how Windows receives and installs subsequent updates.…
KB5081277 Apr 29, 2026 KB5081277 represents the March 10, 2026 servicing update for .NET 8.0, delivered as a cumulative security patch to the .NET runtime environment. This update is distributed through Microsoft Update for Windows client systems and through WSUS and the Microsoft Update…
KB5085516 Apr 29, 2026 KB5085516 is an out-of-band cumulative update released on March 21, 2026, for Windows 11 versions 25H2 and 24H2, bringing OS builds to 26200.8039 and 26100.8039. This emergency patch was specifically developed to address a critical authentication issue that emerged following…
KB5078885 Apr 29, 2026 KB5078885 is a March 2026 cumulative security update for Windows 10 Extended Security Updates (ESU) and Windows 10 Enterprise LTSC 2021, advancing builds to 19045.7058 and 19044.7058 respectively. This update represents Microsoft's continued commitment to maintaining security for Windows 10…
KB5078774 Apr 29, 2026 KB5078774 is a monthly cumulative security rollup released on March 10, 2026, specifically designed for Windows Server 2012 R2 systems operating under Extended Security Updates (ESU). This patch represents part of Microsoft's ongoing commitment to maintaining security for legacy server…
KB5078740 Apr 29, 2026 KB5078740 is a cumulative security update released on March 10, 2026, for Windows Server 2025 (OS Build 26100.32522). This update consolidates the latest security fixes and quality improvements from the previous month's optional preview release (KB5075899 from February 10, 2026).…
KB5079234 Apr 29, 2026 KB5079234 is a servicing stack update released on March 10, 2026, specifically designed for Windows Server 2012 Extended Security Updates (ESU) environments. This update addresses quality improvements to the servicing stack component, which is responsible for the installation and management…
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