Patch Tuesday Updates: February 2026

Patch Tuesday Updates: February 2026

Good day, everyone!

Here's a list of the updates released in this month's Patch Tuesday.

New OS Security Updates:
  • 43385 - 2026-02 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB5075970) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
  • 43386 - 2026-02 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems (KB5075971) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
  • 43387 - 2026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5075906) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43388 - 2026-02 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5075897) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43389 - 2026-02 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5075899) (26100.32370) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43390 - 2026-02 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43391 - 2026-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43392 - 2026-02 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43393 - 2026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43394 - 2026-02 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43395 - 2026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43396 - 2026-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
  • 43397 - 2026-02 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43398 - 2026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43399 - 2026-02 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
  • 43400 - 2026-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43401 - 2026-02 Cumulative Update for Windows 11 Version 23H2 for arm64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43402 - 2026-02 Cumulative Update for Windows 11 Version 24H2 for arm64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43403 - 2026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43404 - 2026-02 Cumulative Update for Windows 11, version 25H2 for arm64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43405 - 2026-02 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
  • 43406 - 2026-02 Servicing Stack Update for Windows 10 Version 1607 for x64-based Systems (KB5075902)
  • 43407 - 2026-02 Servicing Stack Update for Windows 10 Version 1607 for x86-based Systems (KB5075902)
  • 43408 - 2026-02 Servicing Stack Update for Windows Server 2016 for x64-based Systems (KB5075902)
  • 43409 - 2026-02 Cumulative Security Update for Internet Explorer 11 for Windows Server 2012 R2 for x64-based systems (KB5075944) (ESU)
  • 43410 - 2026-02 Cumulative Security Update for Internet Explorer 11 for Windows Server 2012 for x64-based systems (KB5075944) (ESU)
  • 43411 - Windows Malicious Software Removal Tool x64 - Feb 2026 (KB890830)
  • 43412 - Windows Malicious Software Removal Tool - Feb 2026 (KB890830)
  • 43413 - Update for .NET Hosting (10.0.3) (KB5077862)
  • 43414 - Update for AspNet Core (x64) (10.0.3) (KB5077862)
  • 43415 - Update for AspNet Core (x86) (10.0.3) (KB5077862)
  • 43416 - Update for .NET Desktop Runtime (x64) (10.0.3) (KB5077862)
  • 43417 - Update for .NET Desktop Runtime (x86) (10.0.3) (KB5077862)
  • 43418 - Update for .NET Runtime (x64) (10.0.3) (KB5077862)
  • 43419 - Update for .NET Runtime (x86) (10.0.3) (KB5077862)
  • 43420 - Update for .NET SDK (x64) (10.0.103) (KB5077862)
  • 43421 - Update for .NET SDK (x86) (10.0.103) (KB5077862)
  • 43422 - Update for .NET Hosting (9.0.13) (KB5077864)
  • 43423 - Update for AspNet Core (x64) (9.0.13) (KB5077864)
  • 43424 - Update for AspNet Core (x86) (9.0.13) (KB5077864)
  • 43425 - Update for .NET Desktop Runtime (x64) (9.0.13) (KB5077864)
  • 43426 - Update for .NET Desktop Runtime (x86) (9.0.13) (KB5077864)
  • 43427 - Update for .NET Runtime (x64) (9.0.13) (KB5077864)
  • 43428 - Update for .NET Runtime (x86) (9.0.13) (KB5077864)
  • 43429 - Update for .NET SDK (x64) (9.0.311) (KB5077864)
  • 43430 - Update for .NET SDK (x86) (9.0.311) (KB5077864)
  • 43431 - Update for .NET SDK (x64) (9.0.114) (KB5077864)
  • 43432 - Update for .NET SDK (x86) (9.0.114) (KB5077864)
  • 43433 - Update for .NET Hosting (8.0.24) (KB5077863)
  • 43434 - Update for AspNet Core (x64) (8.0.24) (KB5077863)
  • 43435 - Update for AspNet Core (x86) (8.0.24) (KB5077863)
  • 43436 - Update for .NET Desktop Runtime (x64) (8.0.24) (KB5077863)
  • 43437 - Update for .NET Desktop Runtime (x86) (8.0.24) (KB5077863)
  • 43438 - Update for .NET Runtime (x64) (8.0.24) (KB5077863)
  • 43439 - Update for .NET Runtime (x86) (8.0.24) (KB5077863)
  • 43440 - Update for .NET SDK (x64) (8.0.418) (KB5077863)
  • 43441 - Update for .NET SDK (x86) (8.0.418) (KB5077863)
  • 43442 - Update for .NET SDK (x64) (8.0.124) (KB5077863)
  • 43443 - Update for .NET SDK (x86) (8.0.124) (KB5077863)
Security Updates:
  1. 43444 - Security Update for Microsoft SharePoint Server 2019 Core (KB5002834) farm-deployment
  2. 43445 - Security Update for Microsoft SharePoint Server 2019 Language Pack (KB5002836) farm-deployment
  3. 43446 - Security Update for Microsoft SharePoint Enterprise Server 2016 (KB5002841) farm-deployment
  4. 43447 - Security Update for Microsoft SharePoint Enterprise Server 2016 (KB5002840) farm-deployment
  5. 43448 - Security Update for Microsoft Excel 2016 (KB5002837) 32-Bit Edition
  6. 43449 - Security Update for Microsoft Excel 2016 (KB5002837) 64-Bit Edition
  7. 43450 - Security Update for Microsoft Office Online Server (KB5002835) farm-deployment
  8. 43451 - Security Update for Microsoft Word 2016 (KB5002839) 32-Bit Edition
  9. 43452 - Security Update for Microsoft Word 2016 (KB5002839) 64-Bit Edition
  10. 43453 - Security Update for Microsoft SharePoint Server Subscription Edition (KB5002833) farm-deployment
  11. 43455 - Update for Microsoft 365 Apps for Business Current Channel for x64 2601 of version(19628.20204)
  12. 43457 - Update for Microsoft 365 Apps for Business Current Channel for x86 2601 of version(19628.20204)
  13. 43459 - Update for Microsoft 365 Apps for Enterprise Current Channel for x64 2601 of version(19628.20204)
  14. 43461 - Update for Microsoft 365 Apps for Enterprise Current Channel for x86 2601 of version(19628.20204)
  15. 43463 - Update for Microsoft 365 Apps for Monthly Enterprise Channel for x64 2512 of version(19530.20226)
  16. 43465 - Update for Microsoft 365 Apps for Monthly Enterprise Channel for x86 version 2512 (19530.20226)
  17. 43467 - Update for Microsoft 365 Apps for Business Monthly Enterprise Channel for x64 2512 of version(19530.20226)
  18. 43469 - Update for Microsoft 365 Apps for Business Monthly Enterprise Channel for x86 version 2512 (19530.20226)
  19. 43471 - Update for Microsoft 365 Apps for Business Semi Annual Channel for x64 2508 of version(19127.20532)
  20. 43473 - Update for Microsoft 365 Apps for Business Semi Annual Channel for x86 2508 of version(19127.20532)
  21. 43475 - Update for Microsoft 365 Apps for Enterprise Semi Annual Channel for x64 2508 of version(19127.20532)
  22. 43477 - Update for Microsoft 365 Apps for Enterprise Semi Annual Channel for x86 2508 of version(19127.20532)
  23. 43479 - Update for Office 2019 for x64 1808 of volume version(10417.20097)
  24. 43481 - Update for Office 2019 for x86 1808 of volume version(10417.20097)
  25. 43483 - Update for Office 2021 for x64 2108 of volume version(14334.20522)
  26. 43485 - Update for Office 2021 for x86 2108 of volume version(14334.20522)
  27. 43487 - Update for Office 2021 for x64 2601 of Retail Version(19628.20204)
  28. 43489 - Update for Office 2021 for x86 2601 of Retail Version(19628.20204)
  29. 43491 - Update for Office 2024 for x64 2408 of volume version(17932.20670)
  30. 43493 - Update for Office 2024 for x86 2408 of volume version(17932.20670)
  31. 43495 - Update for Office 2024 for x86 2601 of Retail Version(19628.20204)
  32. 43497 - Update for Office 2024 for x64 2601 of Retail Version(19628.20204)
  33. 43498 - Update for Microsoft Visual Studio Professional 2022 (17.14.26) (Online Installer)
  34. 43499 - Update for Microsoft Visual Studio Enterprise 2022 (17.14.26) (Online Installer)
  35. 43500 - Update for Microsoft Visual Studio Community 2022 (17.14.26) (Online Installer)
  36. 43501 - Security Update for Exchange Server SE RTM SU5 (KB5074992)
  37. 43502 - Update for Microsoft Visual Studio Professional 2026 (18.3.0) (Online Installer)
  38. 43503 - Update for Microsoft Visual Studio Enterprise 2026 (18.3.0) (Online Installer)
  39. 43504 - Update for Microsoft Visual Studio Community 2026 (18.3.0) (Online Installer)
Third-Party Updates:
  1. 355903 - Google Chrome (145.0.7632.45,145.0.7632.46)
  2. 355904 - Google Chrome (x64) (145.0.7632.45,145.0.7632.46)
Supported Zero-day CVE: 6

CVE-2026-21519 - Desktop Window Manager Elevation of Privilege Vulnerability

patchidbulletiniddescription
43387MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5075906) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43388MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5075897) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43389MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5075899) (26100.32370) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43392MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43390MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43395MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43394MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43398MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43397MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43396MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43399MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43401MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for arm64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43400MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43402MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for arm64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43403MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43404MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for arm64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43405MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43391MS26-FEB32026-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43393MS26-FEB32026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)

CVE-2026-21513 - MSHTML Framework Security Feature Bypass Vulnerability

patchidbulletiniddescription
43387MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5075906) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43388MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5075897) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43389MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5075899) (26100.32370) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43392MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43390MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43395MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43394MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43398MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43397MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43396MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43399MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43401MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for arm64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43400MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43402MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for arm64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43403MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43404MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for arm64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43405MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43391MS26-FEB32026-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43393MS26-FEB32026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43386MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems (KB5075971) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43385MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB5075970) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)

CVE-2026-21525 - Windows Remote Access Connection Manager Denial of Service Vulnerability

patchidbulletiniddescription
43387MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5075906) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43388MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5075897) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43389MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5075899) (26100.32370) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43392MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43390MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43395MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43394MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43398MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43397MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43396MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43399MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43401MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for arm64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43400MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43402MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for arm64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43403MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43404MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for arm64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43405MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43391MS26-FEB32026-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43393MS26-FEB32026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43386MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems (KB5075971) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43385MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB5075970) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)

CVE-2026-21533 - Windows Remote Desktop Services Elevation of Privilege Vulnerability

patchidbulletiniddescription
43387MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5075906) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43388MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5075897) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43389MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5075899) (26100.32370) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43392MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43390MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43395MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43394MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43398MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43397MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43396MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43399MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43401MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for arm64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43400MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43402MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for arm64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43403MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43404MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for arm64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43405MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43391MS26-FEB32026-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43393MS26-FEB32026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43386MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems (KB5075971) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43385MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB5075970) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)

CVE-2026-21510 - Windows Shell Security Feature Bypass Vulnerability

patchidbulletiniddescription
43387MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 21H2 for x64-based Systems (KB5075906) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43388MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 23H2 for x64-based Systems (KB5075897) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43389MS26-FEB32026-02 Cumulative Update for Microsoft server operating system version 24H2 for x64-based Systems (KB5075899) (26100.32370) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43392MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43390MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43395MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43394MS26-FEB32026-02 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43398MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43397MS26-FEB32026-02 Cumulative Update for Windows 10 Version 21H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43396MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43399MS26-FEB32026-02 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5075912) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43401MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for arm64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43400MS26-FEB32026-02 Cumulative Update for Windows 11 Version 23H2 for x64-based Systems (KB5075941) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43402MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for arm64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43403MS26-FEB32026-02 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5077181) (26100.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43404MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for arm64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43405MS26-FEB32026-02 Cumulative Update for Windows 11, version 25H2 for x64-based Systems (KB5077181) (26200.7840) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43391MS26-FEB32026-02 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5075999) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43393MS26-FEB32026-02 Cumulative Update for Windows Server 2019 for x64-based Systems (KB5075904) (CVE-2026-21519) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510)
43386MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 for x64-based Systems (KB5075971) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)
43385MS26-FEB62026-02 Security Monthly Quality Rollup for Windows Server 2012 R2 for x64-based Systems (KB5075970) (CVE-2026-21513) (CVE-2026-21525) (CVE-2026-21533) (CVE-2026-21510) (ESU)

Cheers,
The ManageEngine Team


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