Exploit for Stack-based Buffer Overflow in Microsoft

CVE-2026-41089 Detector Safe detection script for CVE-2026-...

2026-05 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5087424)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

May 12, 2026—Hotpatch KB5087423 (OS Build 26100.32772)

May 12, 2026—Hotpatch KB5087423 OS Build 26100.32772 This update applies to Windows Server 2025 Datacenter & Standard machines connected to Azure Arc. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuous innovatio...

March 10, 2026—Hotpatch KB5078737 (OS Build 20348.4830)

March 10, 2026—Hotpatch KB5078737 OS Build 20348.4830 This Hotpatch update for Windows Server 2022 KB5078737, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and...

May 12, 2026—Hotpatch KB5089466 (OS Builds 26200.8390 and 26100.8390)

May 12, 2026—Hotpatch KB5089466 OS Builds 26200.8390 and 26100.8390 This Hotpatch update for Windows 11, version 25H2 and 24H2 KB5089466 includes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and...

May 12, 2026—Hotpatch KB5087424 (OS Build 20348.5074)

May 12, 2026—Hotpatch KB5087424 OS Build 20348.5074 This Hotpatch update for Windows Server 2022 KB5087424 includes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuous innovation, see Windo...

2026-03 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5078737)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

March 10, 2026—Hotpatch KB5078736 (OS Build 26100.32463)

March 10, 2026—Hotpatch KB5078736 OS Build 26100.32463 This update applies to Windows Server 2025 Datacenter & Standard machines connected to Azure Arc. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuous...

March 13, 2026—Hotpatch KB5084597 (OS Builds 26200.7982 and 26100.7982) Out-of-band

March 13, 2026—Hotpatch KB5084597 OS Builds 26200.7982 and 26100.7982 Out-of-band This update for Windows 11, version 25H2 and 24H2 KB5084597 incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, an...

March 10, 2026—Hotpatch KB5079420 (OS Builds 26200.7979 and 26100.7979)

March 10, 2026—Hotpatch KB5079420 OS Builds 26200.7979 and 26100.7979 This Hotpatch update for Windows 11, version 25H2 and 24H2 KB5079420, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates,...

KB5078766: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (March 2026)

The remote Windows host is missing security update 5078766 or hotpatch 5078737. It is, therefore, affected by multiple vulnerabilities - Use after free in Windows Print Spooler Components allows an authorized attacker to execute code over a network. CVE-2026-23669 - Use after free in Windows Win3...

2026-02 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5075943)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

February 10, 2026—Hotpatch KB5075942 (OS Build 26100.32313)

February 10, 2026—Hotpatch KB5075942 OS Build 26100.32313 This update applies to Windows Server 2025 Datacenter & Standard machines connected to Azure Arc. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuous...

February 10, 2026—Hotpatch KB5075943 (OS Build 20348.4711)

February 10, 2026—Hotpatch KB5075943 OS Build 20348.4711 This Hotpatch update for Windows Server 2022 KB5075943, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and...

February 10, 2026—Hotpatch KB5077212 (OS Builds 26200.7781 and 26100.7781)

February 10, 2026—Hotpatch KB5077212 OS Builds 26200.7781 and 26100.7781 This Hotpatch update for Windows 11, version 25H2 and 24H2 KB5077212, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates,...

2025-12 Cumulative security Hotpatch for Azure Stack HCI, version 21H2 and Windows Server 2022 Datacenter: Azure Edition for x64-based Systems (KB5071413)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information...

KB5074353: Security Update for Windows PowerShell (OS Build 20348.4467)

KB5074353: Security Update for Windows PowerShell OS Build 20348.4467 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows Server 2022, see the update history page for Windows Server 2022.Be sure to...

November 11, 2025—Hotpatch KB5068966 (OS Build 26100.7092)

November 11, 2025—Hotpatch KB5068966 OS Build 26100.7092 ​​​​​​​This update applies to Windows Server 2025 Datacenter & Standard machines connected to Azure Arc. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and continuou...

December 9, 2025—Hotpatch KB5071413 (OS Build 20348.4467)

December 9, 2025—Hotpatch KB5071413 OS Build 20348.4467 This Hotpatch update for Windows Server 2022 KB5071413, improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band OOB updates, and...

KB5074204: Security Update for Windows PowerShell (OS Builds 26100.7392 and 26200.7392)

KB5074204: Security Update for Windows PowerShell OS Builds 26100.7392 and 26200.7392 For information about Windows update terminology, see types of Windows updates and the monthly quality update types. To find an overview of Windows 11, see the update history pages for Windows 11, version 24H2 a...