Windows 11 26H1

1 KEV

Latest Release

KB Article KB5121000
Build 10.0.28000.2704
Released 2026-08-11
Age 3 days ago
CVEs Fixed 201
Exploited 1 1 KEV
Release Type Patch Tuesday
End of Support (Home/Pro) 3/15/2028
End of Support (Ent/Edu) 3/14/2029
Security Information
August 2026 Security Update 2026-08-11 10.0.28000.2704
Patch Tuesday 201 CVEs 1 KEV Critical Risk
+28d
28 days since previous release  ·  Contains 1 actively exploited vulnerability
⚠️ Contains 1 actively exploited vulnerability
Recommendation: Update immediately — contains known-exploited vulnerabilities (CISA KEV)
KB Article
KB5121000
Build
10.0.28000.2704
Vulnerabilities
201
CISA KEV
1
Days to Prev.
28
Supersedes
KB5101649
CVEs (201)
CVE-2026-42xx (1 CVE)
CVE-2026-49xx (1 CVE)
CVE-2026-50xx (1 CVE)
CVE-2026-54xx (2 CVEs)
CVE-2026-56xx (1 CVE)
CVE-2026-62xx (104 CVEs)
CVE-2026-62688 CVE-2026-62690 CVE-2026-62692 CVE-2026-62693 CVE-2026-62695 CVE-2026-62696 CVE-2026-62698 CVE-2026-62699 CVE-2026-62700 CVE-2026-62701 CVE-2026-62702 CVE-2026-62703 CVE-2026-62705 CVE-2026-62707 CVE-2026-62708 CVE-2026-62709 CVE-2026-62710 CVE-2026-62711 CVE-2026-62712 CVE-2026-62713 CVE-2026-62717 CVE-2026-62719 CVE-2026-62721 CVE-2026-62722 CVE-2026-62723 CVE-2026-62724 CVE-2026-62725 CVE-2026-62726 CVE-2026-62728 CVE-2026-62729 CVE-2026-62730 CVE-2026-62732 CVE-2026-62733 CVE-2026-62734 CVE-2026-62735 CVE-2026-62736 CVE-2026-62737 CVE-2026-62738 CVE-2026-62739 CVE-2026-62740 CVE-2026-62741 CVE-2026-62743 CVE-2026-62746 CVE-2026-62747 CVE-2026-62748 CVE-2026-62749 CVE-2026-62750 CVE-2026-62751 CVE-2026-62752 CVE-2026-62753 CVE-2026-62754 CVE-2026-62755 CVE-2026-62757 CVE-2026-62758 CVE-2026-62766 CVE-2026-62768 CVE-2026-62769 CVE-2026-62770 CVE-2026-62771 CVE-2026-62772 CVE-2026-62773 CVE-2026-62774 CVE-2026-62775 CVE-2026-62777 CVE-2026-62779 CVE-2026-62780 CVE-2026-62781 CVE-2026-62782 CVE-2026-62783 CVE-2026-62784 CVE-2026-62785 CVE-2026-62786 CVE-2026-62788 CVE-2026-62790 CVE-2026-62792 CVE-2026-62793 CVE-2026-62795 CVE-2026-62796 CVE-2026-62797 CVE-2026-62798 CVE-2026-62799 CVE-2026-62800 CVE-2026-62811 CVE-2026-62815 CVE-2026-62816 CVE-2026-62817 CVE-2026-62819 CVE-2026-62822 CVE-2026-62832 CVE-2026-62872 CVE-2026-62876 CVE-2026-62877 CVE-2026-62880 CVE-2026-62881 CVE-2026-62883 CVE-2026-62885 CVE-2026-62887 CVE-2026-62888 CVE-2026-62889 CVE-2026-62890 CVE-2026-62892 CVE-2026-62894 CVE-2026-62897 CVE-2026-62908
CVE-2026-67xx (2 CVEs)
CVE-2026-68xx (1 CVE)
CVE-2026-72xx (1 CVE)
July 2026 Security Update 2026-07-14 10.0.28000.2525
Patch Tuesday 397 CVEs
+35d
35 days since previous release  ·  Addresses 397 security issues
ℹ️ Addresses 397 security issues
Recommendation: Update to stay secure — security fixes available
KB Article
KB5101649
Build
10.0.28000.2525
Vulnerabilities
397
Days to Prev.
35
Supersedes
KB5101649
CVEs (397)
CVE-2026-33xx (1 CVE)
CVE-2026-41xx (1 CVE)
CVE-2026-44xx (2 CVEs)
CVE-2026-47xx (2 CVEs)
CVE-2026-48xx (2 CVEs)
CVE-2026-50xx (227 CVEs)
CVE-2026-50293 CVE-2026-50294 CVE-2026-50295 CVE-2026-50296 CVE-2026-50297 CVE-2026-50298 CVE-2026-50299 CVE-2026-50300 CVE-2026-50302 CVE-2026-50303 CVE-2026-50304 CVE-2026-50305 CVE-2026-50306 CVE-2026-50307 CVE-2026-50308 CVE-2026-50309 CVE-2026-50310 CVE-2026-50311 CVE-2026-50312 CVE-2026-50313 CVE-2026-50315 CVE-2026-50316 CVE-2026-50317 CVE-2026-50318 CVE-2026-50321 CVE-2026-50322 CVE-2026-50323 CVE-2026-50324 CVE-2026-50325 CVE-2026-50326 CVE-2026-50327 CVE-2026-50329 CVE-2026-50330 CVE-2026-50331 CVE-2026-50332 CVE-2026-50333 CVE-2026-50334 CVE-2026-50335 CVE-2026-50336 CVE-2026-50337 CVE-2026-50339 CVE-2026-50340 CVE-2026-50341 CVE-2026-50342 CVE-2026-50343 CVE-2026-50344 CVE-2026-50345 CVE-2026-50346 CVE-2026-50347 CVE-2026-50348 CVE-2026-50350 CVE-2026-50351 CVE-2026-50352 CVE-2026-50353 CVE-2026-50354 CVE-2026-50355 CVE-2026-50356 CVE-2026-50357 CVE-2026-50358 CVE-2026-50359 CVE-2026-50360 CVE-2026-50361 CVE-2026-50362 CVE-2026-50363 CVE-2026-50364 CVE-2026-50365 CVE-2026-50366 CVE-2026-50367 CVE-2026-50368 CVE-2026-50369 CVE-2026-50371 CVE-2026-50372 CVE-2026-50373 CVE-2026-50374 CVE-2026-50375 CVE-2026-50376 CVE-2026-50377 CVE-2026-50378 CVE-2026-50379 CVE-2026-50380 CVE-2026-50381 CVE-2026-50382 CVE-2026-50383 CVE-2026-50384 CVE-2026-50385 CVE-2026-50386 CVE-2026-50387 CVE-2026-50388 CVE-2026-50389 CVE-2026-50390 CVE-2026-50391 CVE-2026-50392 CVE-2026-50393 CVE-2026-50394 CVE-2026-50396 CVE-2026-50397 CVE-2026-50398 CVE-2026-50399 CVE-2026-50400 CVE-2026-50401 CVE-2026-50402 CVE-2026-50403 CVE-2026-50404 CVE-2026-50405 CVE-2026-50406 CVE-2026-50407 CVE-2026-50409 CVE-2026-50410 CVE-2026-50411 CVE-2026-50412 CVE-2026-50413 CVE-2026-50414 CVE-2026-50415 CVE-2026-50416 CVE-2026-50417 CVE-2026-50418 CVE-2026-50419 CVE-2026-50420 CVE-2026-50421 CVE-2026-50422 CVE-2026-50423 CVE-2026-50424 CVE-2026-50425 CVE-2026-50427 CVE-2026-50428 CVE-2026-50429 CVE-2026-50430 CVE-2026-50431 CVE-2026-50432 CVE-2026-50433 CVE-2026-50434 CVE-2026-50435 CVE-2026-50436 CVE-2026-50437 CVE-2026-50439 CVE-2026-50440 CVE-2026-50441 CVE-2026-50442 CVE-2026-50445 CVE-2026-50447 CVE-2026-50448 CVE-2026-50449 CVE-2026-50450 CVE-2026-50451 CVE-2026-50452 CVE-2026-50453 CVE-2026-50454 CVE-2026-50455 CVE-2026-50456 CVE-2026-50457 CVE-2026-50458 CVE-2026-50459 CVE-2026-50460 CVE-2026-50461 CVE-2026-50462 CVE-2026-50463 CVE-2026-50465 CVE-2026-50466 CVE-2026-50469 CVE-2026-50470 CVE-2026-50471 CVE-2026-50473 CVE-2026-50474 CVE-2026-50475 CVE-2026-50476 CVE-2026-50477 CVE-2026-50478 CVE-2026-50482 CVE-2026-50483 CVE-2026-50484 CVE-2026-50485 CVE-2026-50486 CVE-2026-50487 CVE-2026-50489 CVE-2026-50490 CVE-2026-50491 CVE-2026-50492 CVE-2026-50493 CVE-2026-50494 CVE-2026-50495 CVE-2026-50496 CVE-2026-50497 CVE-2026-50498 CVE-2026-50499 CVE-2026-50500 CVE-2026-50501 CVE-2026-50502 CVE-2026-50503 CVE-2026-50504 CVE-2026-50505 CVE-2026-50509 CVE-2026-50525 CVE-2026-50527 CVE-2026-50646 CVE-2026-50647 CVE-2026-50648 CVE-2026-50649 CVE-2026-50650 CVE-2026-50652 CVE-2026-50653 CVE-2026-50655 CVE-2026-50659 CVE-2026-50661 CVE-2026-50666 CVE-2026-50667 CVE-2026-50668 CVE-2026-50669 CVE-2026-50670 CVE-2026-50672 CVE-2026-50673 CVE-2026-50674 CVE-2026-50676 CVE-2026-50677 CVE-2026-50679 CVE-2026-50680 CVE-2026-50681 CVE-2026-50682 CVE-2026-50686 CVE-2026-50687 CVE-2026-50688 CVE-2026-50689 CVE-2026-50690 CVE-2026-50692 CVE-2026-50694 CVE-2026-50695 CVE-2026-50696 CVE-2026-50697
June 2026 Security Update 2026-06-09 10.0.28000.2269
Patch Tuesday 113 CVEs
+28d
28 days since previous release  ·  Addresses 113 security issues
ℹ️ Addresses 113 security issues
Recommendation: Update to stay secure — security fixes available
KB Article
KB5095051
Build
10.0.28000.2269
Vulnerabilities
113
Days to Prev.
28
CVEs (113)
CVE-2025-10xx (1 CVE)
CVE-2026-33xx (1 CVE)
CVE-2026-34xx (1 CVE)
CVE-2026-40xx (2 CVEs)
CVE-2026-41xx (2 CVEs)
CVE-2026-49xx (1 CVE)
CVE-2026-50xx (1 CVE)
CVE-2026-88xx (1 CVE)
May 2026 Security Update 2026-05-12 10.0.28000.2113
Patch Tuesday 63 CVEs
+28d
28 days since previous release  ·  Addresses 63 security issues
April 2026 Security Update 2026-04-14 10.0.28000.1836
Patch Tuesday 121 CVEs 1 KEV Critical Risk
+35d
35 days since previous release  ·  Contains 1 actively exploited vulnerability
⚠️ Contains 1 actively exploited vulnerability
Recommendation: Update immediately — contains known-exploited vulnerabilities (CISA KEV)
KB Article
KB5083768
Build
10.0.28000.1836
Vulnerabilities
121
CISA KEV
1
Days to Prev.
35
Supersedes
KB5079466
CVEs (121)
CVE-2026-20xx (2 CVEs)
CVE-2026-23xx (2 CVEs)
CVE-2026-25xx (2 CVEs)
CVE-2026-32xx (57 CVEs)
February 2026 Security Update 2026-02-10 10.0.28000.1575
Patch Tuesday 25 CVEs 5 KEV Critical Risk
+91d
91 days since previous release  ·  Contains 5 actively exploited vulnerabilities
November 2025 Security Update 2025-11-11 10.0.28000.1836
Patch Tuesday 2 CVEs
+28d
28 days since previous release  ·  Addresses 2 security issues
ℹ️ Addresses 2 security issues
Recommendation: Update to stay secure — security fixes available
KB Article
KB5083768
Build
10.0.28000.1836
Vulnerabilities
2
Days to Prev.
28
Supersedes
KB5079466
CVEs (2)
CVE-2025-64xx (1 CVE)
CVE-2025-65xx (1 CVE)
October 2025 Security Update 2025-10-14 10.0.28000.1575
Patch Tuesday 1 CVEs
Addresses 1 security issue
ℹ️ Addresses 1 security issue
Recommendation: Update to stay secure — security fixes available
KB Article
KB5077179
Build
10.0.28000.1575
Vulnerabilities
1
CVEs (1)
CVE-2025-28xx (1 CVE)

Additional Updates

6 releases Out-of-band and preview updates
Date Build KB Article Type
2026-07-28 28000.2608 KB5101681 2026-07 D
2026-06-23 28000.2340 KB5095091 2026-06 D
2026-05-26 28000.2179 KB5089570 2026-05 D
2026-04-30 28000.1896 KB5083806 2026-04 D
2026-03-26 28000.1764 KB5079489 2026-03 D
2026-02-24 28000.1643 KB5077239 2026-02 D