May 12, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 (KB5087069)

May 12, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 R2 KB5087069 Applies to: Microsoft .NET Framework 4.8 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 Window...

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 R2 (KB5087049)

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 R2 KB5087049 Applies to: Microsoft .NET Framework 3.5 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 Window...

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 (KB5087048)

May 12, 2026-Security and Quality Rollup for .NET Framework 3.5 for Windows Server 2012 KB5087048 Applies to: Microsoft .NET Framework 3.5 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...

KB5082806: Cumulative security update for Internet Explorer: April 14, 2026

KB5082806: Cumulative security update for Internet Explorer: April 14, 2026 Important Certain versions of Microsoft Internet Explorer have reached the end of support. Note that some versions of Internet Explorer may be supported past the latest OS end date when Extended Security Updates ESUs are...

April 14, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 (KB5082400)

April 14, 2026-Security and Quality Rollup for .NET Framework 4.6.2, 4.7, 4.7.1, 4.7.2 for Windows Server 2012 KB5082400 Applies to: Microsoft .NET Framework 4.6.2 Microsoft .NET Framework 4.7 Microsoft .NET Framework 4.7.1 Microsoft .NET Framework 4.7.2 Important The installation of this Extende...

April 14, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 (KB5082403)

April 14, 2026-Security and Quality Rollup for .NET Framework 4.8 for Windows Server 2012 KB5082403 Applies to: Microsoft .NET Framework 4.8 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...

March 10, 2026—KB5078774 (Monthly Rollup)

March 10, 2026—KB5078774 Monthly Rollup 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 all Subset of endpoints for ESU only...

January 13, 2026—KB5073698 (Monthly Rollup)

January 13, 2026—KB5073698 Monthly Rollup 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 Subset of endpoints for ESU only...

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Update to Firefox Extended Support Release 140.5.0 ESR bsc1253188 CVE-2025-13012: Race condition in the Graphics component. CVE-2025-13016: Incorrect boundary conditions in the JavaScript: WebAssembly component. CVE-2025-13017: Same-origi...

KB5068783: Servicing stack update for Windows Server 2012 R2: November 11, 2025

KB5068783: Servicing stack update for Windows Server 2012 R2: November 11, 2025 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and...

October 23, 2025—KB5070886 (Monthly Rollup) Out-of-band

October 23, 2025—KB5070886 Monthly Rollup Out-of-band 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 all Subset of endpoint...

KB5066840: Cumulative security update for Internet Explorer: October 14, 2025

KB5066840: Cumulative security update for Internet Explorer: October 14, 2025 Important Certain versions of Microsoft Internet Explorer have reached the end of support. Note that some versions of Internet Explorer may be supported past the latest OS end date when Extended Security Updates ESUs ar...

KB5066795: Servicing stack update for Windows Server 2012: October 14, 2025

KB5066795: Servicing stack update for Windows Server 2012: October 14, 2025 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-manage...

KB5065767: Servicing stack update for Windows Server 2012 R2: September 9, 2025

KB5065767: Servicing stack update for Windows Server 2012 R2: September 9, 2025 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and...

July 8, 2025—KB5062597 (Monthly Rollup)

July 8, 2025—KB5062597 Monthly Rollup Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past months...

August 12, 2025—KB5063906 (Monthly Rollup)

August 12, 2025—KB5063906 Monthly Rollup 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 Subset of endpoints for ESU only a...

August 12, 2025—KB5063950 (Monthly Rollup)

August 12, 2025—KB5063950 Monthly Rollup Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the past...

June 10, 2025—KB5061018 (Monthly Rollup)

June 10, 2025—KB5061018 Monthly Rollup 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 all Subset of endpoints for ESU only...

KB5062558: Cumulative security update for Internet Explorer: July 8, 2025

KB5062558: Cumulative security update for Internet Explorer: July 8, 2025 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed...

May 13, 2025—KB5058451 (Monthly Rollup)

May 13, 2025—KB5058451 Monthly Rollup 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 Subset of endpoints for ESU only are...