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Microsoft Patch Tuesday, February 2026

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Microsoft's February 2026 security release, published February 10, 2026: 29 updates fixing 39 CVEs, ranked by confirmed exploitation, ransomware use, and severity. Provided by Senserva.

29
Updates (KBs)
39
CVEs fixed
5
On the CISA KEV list
0
Critical updates

Actively exploited CVEs (CISA KEV)

CVE-2026-21513MSHTML Framework Security Feature Bypass VulnerabilityCVSS 8.8Exploited
CVE-2026-21510Windows Shell Security Feature Bypass VulnerabilityCVSS 8.8Exploited
CVE-2026-21519Desktop Window Manager Elevation of Privilege VulnerabilityCVSS 7.8Exploited
CVE-2026-21533Windows Remote Desktop Services Elevation of Privilege VulnerabilityCVSS 7.8Exploited
CVE-2026-21525Windows Remote Access Connection Manager Denial of Service VulnerabilityCVSS 6.2Exploited

Other high-risk CVEs (CVSS 8.8+)

CVE-2026-21255Windows Hyper-V Security Feature Bypass VulnerabilityCVSS 8.8

Products fixed this month

Windows Server 2022 (2)Windows Server 2022 (Server Core installation) (2)Windows Server 2025 (Server Core installation) (2)Windows Server 2025 (2)Windows 11 Version 25H2 for ARM64-based Systems (2)Windows 11 Version 25H2 for x64-based Systems (2)Windows 11 Version 24H2 for ARM64-based Systems (2)Microsoft SharePoint Enterprise Server 2016 (2)Microsoft SharePoint Server 2019 (2)Windows 10 Version 1809 for 32-bit Systems (1)

Every update in this release

All 29 update articles, worst first: anything on the CISA KEV list, then by highest CVSS. Each row links our page for the update, Microsoft's support article, and the Update Catalog for a standalone download.

UpdateSeverityMax CVSSCVEs fixedProductsAlso
KB5075904 ExploitedHigh8.824Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075906 ExploitedHigh8.827Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5075943 ExploitedHigh8.827Windows Server 2022, Windows Server 2022 (Server Core installation)Support · Catalog
KB5075912 ExploitedHigh8.824Windows 10 Version 21H2 for 32-bit Systems, Windows 10 Version 21H2 for ARM64-based Systems, Windows 10 Version 21H2 for x64-based SystemsSupport · Catalog
KB5075899 ExploitedHigh8.829Windows Server 2025 (Server Core installation), Windows Server 2025Support · Catalog
KB5075942 ExploitedHigh8.829Windows Server 2025 (Server Core installation), Windows Server 2025Support · Catalog
KB5077181 ExploitedHigh8.827Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based SystemsSupport · Catalog
KB5077212 ExploitedHigh8.827Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based SystemsSupport · Catalog
KB5075941 ExploitedHigh8.826Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based SystemsSupport · Catalog
KB5075897 ExploitedHigh8.829Windows Server 2022, 23H2 Edition (Server Core installation)Support · Catalog
KB5075999 ExploitedHigh8.821Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows Server 2016Support · Catalog
KB5077179 ExploitedHigh8.826Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based SystemsSupport · Catalog
KB5075971 ExploitedHigh8.813Windows Server 2012, Windows Server 2012 (Server Core installation)Support · Catalog
KB5075970 ExploitedHigh8.815Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)Support · Catalog
KB5002835High7.83Office Online ServerSupport · Catalog
KB5002837High7.83Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)Support · Catalog
KB5002841High7.52Microsoft SharePoint Enterprise Server 2016Support · Catalog
KB5002840High7.52Microsoft SharePoint Enterprise Server 2016Support · Catalog
KB5002834High7.52Microsoft SharePoint Server 2019Support · Catalog
KB5002836High7.52Microsoft SharePoint Server 2019Support · Catalog
KB5002833High7.52Microsoft SharePoint Server Subscription EditionSupport · Catalog
KB5002839High7.52Microsoft Outlook 2016 (32-bit edition), Microsoft Outlook 2016 (64-bit edition), Microsoft Word 2016 (32-bit edition)Support · Catalog
KB5077862High7.51.NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, .NET 10.0 installed on LinuxSupport · Catalog
KB5077863High7.51.NET 8.0 installed on Linux, .NET 8.0 installed on Windows, .NET 8.0 installed on Mac OSSupport · Catalog
KB5077864High7.51.NET 9.0 installed on Mac OS, .NET 9.0 installed on Linux, .NET 9.0 installed on WindowsSupport · Catalog
KB5074992Medium6.51Microsoft Exchange Server Subscription Edition RTMSupport · Catalog
KB5074995Medium6.51Microsoft Exchange Server 2016 Cumulative Update 23Support · Catalog
KB5074993Medium6.51Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5074994Medium6.51Microsoft Exchange Server 2019 Cumulative Update 14Support · Catalog
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Reference: Microsoft CVE and vulnerability management, ranked by real-world risk, and the Microsoft patching guide.
Data notice: this page is provided as is, for informational purposes only, without warranty of any kind. Senserva, LLC does not guarantee the accuracy, completeness, or timeliness of third-party data (MSRC, NVD, CISA KEV, EPSS) and accepts no liability for actions taken based on it; verify against the authoritative Microsoft advisory before acting. Built daily with Senserva Trustworthy AI. All use of this data is subject to the Senserva EULA.