Home › Microsoft Patch Tuesday › February 2026

Microsoft Patch Tuesday, February 2026

·

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 10 Version 1809 for 32-bit Systems (14)Windows 10 Version 1809 for x64-based Systems (14)Windows Server 2019 (14)Microsoft Office 2019 for 32-bit editions (8)Microsoft SharePoint Enterprise Server 2016 (6)Microsoft SharePoint Server 2019 (6)Microsoft Exchange Server Subscription Edition RTM (4)Microsoft Exchange Server 2016 Cumulative Update 23 (4)Microsoft Exchange Server 2019 Cumulative Update 15 (4).NET 10.0 installed on Mac OS (3)

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 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075943 ExploitedHigh8.827Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075912 ExploitedHigh8.824Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075899 ExploitedHigh8.829Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075942 ExploitedHigh8.829Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5077181 ExploitedHigh8.827Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5077212 ExploitedHigh8.827Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075941 ExploitedHigh8.826Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075897 ExploitedHigh8.829Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075999 ExploitedHigh8.821Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5077179 ExploitedHigh8.826Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075971 ExploitedHigh8.813Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5075970 ExploitedHigh8.815Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2019Support · Catalog
KB5002835High7.83Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editionsSupport · Catalog
KB5002837High7.83Office Online Server, Microsoft Office 2019 for 32-bit editions, Microsoft Office 2019 for 64-bit editionsSupport · Catalog
KB5002841High7.52Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002840High7.52Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002834High7.52Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002836High7.52Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002833High7.52Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5002839High7.52Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft Office 2019 for 32-bit editionsSupport · Catalog
KB5077862High7.51.NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, .NET 8.0 installed on LinuxSupport · Catalog
KB5077863High7.51.NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, .NET 8.0 installed on LinuxSupport · Catalog
KB5077864High7.51.NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, .NET 8.0 installed on LinuxSupport · Catalog
KB5074992Medium6.51Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5074995Medium6.51Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5074993Medium6.51Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
KB5074994Medium6.51Microsoft Exchange Server Subscription Edition RTM, Microsoft Exchange Server 2016 Cumulative Update 23, Microsoft Exchange Server 2019 Cumulative Update 15Support · Catalog
Take this release to your AI

Composed from the February 2026 release data above. Copy it into Claude, ChatGPT, or Copilot. Free, no sign-in.

See every Patch Tuesday, all months  |  The live Microsoft patch tracker

← January 2026March 2026 →

Now see your own patch state.

Siemserva by Senserva reads your Microsoft 365, Intune, Defender, and Entra ID environment and turns this release into your list: every update still missing, on every device, ranked by what attackers are actually exploiting. The 650+ configuration checks come with it.

1Find it2Fix it3Prove it
Start my free patch auditAll you do is register.
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.