June 9, 2026—KB5094041 (Monthly Rollup)

June 9, 2026—KB5094041 Monthly Rollup Applies To Windows Server 2012 R2 ESU Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012 R2. For a successful installation, please make sure...

RLSA-2026:36721 Moderate: edk2 security, bug fix, and enhancement update

EDK Embedded Development Kit is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fixes: openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap CVE-2025-9230 Bug Fixes and Enhancements: FJ8.10 Bug How to Updat...

Moderate: edk2 security, bug fix, and enhancement update

EDK Embedded Development Kit is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fixes: openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap CVE-2025-9230 Bug Fixes and Enhancements: FJ8.10 Bug How to Updat...

ALSA-2026:36721 Moderate: edk2 security, bug fix, and enhancement update

EDK Embedded Development Kit is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fixes: openssl: Out-of-bounds read & write in RFC 3211 KEK Unwrap CVE-2025-9230 Bug Fixes and Enhancements: FJ8.10 Bug How to Updat...

KB5094006: Cumulative security update for Internet Explorer: June 9, 2026

KB5094006: Cumulative security update for Internet Explorer: June 9, 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 supported pas...

June 9, 2026—KB5094128 (OS Build 20348.5256)

June 9, 2026—KB5094128 OS Build 20348.5256 Applies To Windows Server 2022 This cumulative update for Windows Server 2022 KB5094128, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more about differences...

June 9, 2026—KB5094126 (OS Builds 26200.8655 and 26100.8655)

June 9, 2026—KB5094126 OS Builds 26200.8655 and 26100.8655 Applies To Windows 11 version 25H2, all editions Windows 11 version 24H2, all editions This cumulative update for Windows 11, version 25H2 and 24H2 KB5094126 includes the latest security fixes and improvements, along with non-security...

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

May 12, 2026—Hotpatch KB5089466 OS Builds 26200.8390 and 26100.8390 Applies To Windows 11 Enterprise LTSC 2024 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 previ...

KB5094141: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: June 9, 2026

KB5094141: Servicing stack update for Windows 10, version 1607 and Windows Server 2016: June 9, 2026 Applies To Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Server 2016, all editions Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devic...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: arm-trusted-firmware (UTSA-2026-016603)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016603 advisory. Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates. This affects downstream use of getext and authnvctr...

May 12, 2026—KB5087544 (OS Builds 19045.7291 and 19044.7291)

May 12, 2026—KB5087544 OS Builds 19045.7291 and 19044.7291 Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Windows 10 IoT Enterprise LTSC 2021 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026...

May 12, 2026—KB5087541 (OS Build 25398.2330)

May 12, 2026—KB5087541 OS Build 25398.2330 Applies To Windows Server, version 23H2 This cumulative update for Windows Server, version 23H2 KB5087541, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn more abou...

May 12, 2026—KB5087470 (Monthly Rollup)

May 12, 2026—KB5087470 Monthly Rollup Applies To Windows Server 2012 ESU Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012. For a successful installation, please make sure all...

May 12, 2026—KB5087537 (OS Build 14393.9140)

May 12, 2026—KB5087537 OS Build 14393.9140 Applies To Windows Server 2016, all editions Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect t...

May 12, 2026—KB5087471 (Monthly Rollup)

May 12, 2026—KB5087471 Monthly Rollup Applies To Windows Server 2012 R2 ESU Important The installation of this Extended Security Update ESU might fail when you try to install it on an Azure Arc-enabled device that is running Windows Server 2012 R2. For a successful installation, please make sure...

April 19, 2026—KB5091572 (OS Build 14393.9062) Out-of-band

April 19, 2026—KB5091572 OS Build 14393.9062 Out-of-band Applies To Windows Server 2016, all editions Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal a...

April 14, 2026—KB5082200 (OS Builds 19045.7184 and 19044.7184)

April 14, 2026—KB5082200 OS Builds 19045.7184 and 19044.7184 Applies To Windows 10 ESU Windows 10 Enterprise LTSC 2021 Windows 10 IoT Enterprise LTSC 2021 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026...

March 10, 2026—KB5078752 (OS Build 17763.8511)

March 10, 2026—KB5078752 OS Build 17763.8511 Applies To Windows Server 2019 Win 10 Ent LTSC 2019 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and...

March 10, 2026—KB5078938 (OS Build 14393.8957)

March 10, 2026—KB5078938 OS Build 14393.8957 Applies To Windows Server 2016, all editions Win 10 Ent LTSB 2016 Win 10 IoT Ent LTSB 2016 Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect...

March 10, 2026—KB5078883 (OS Build 22631.6783)

March 10, 2026—KB5078883 OS Build 22631.6783 Applies To Windows 11 version 23H2, all editions This cumulative update for Windows 11, version 23H2 KB5078883, includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. To learn mo...