KB5126836
Security update fixing 649 CVEs
0Windows versions
649CVEs fixed · 23 critical
1Exploited or in CISA KEV
YesRestart required (per MSRC)
Windows release health lists no known issues from this update or the one it builds on, and none it resolves.
Security fixes
649 Microsoft CVEs · most urgent firstShowing the 10 most urgent of 649All 649 CVEs
What changed
First observed 14 Oct 2026No field changes in the recorded history.
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