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Security

Microsoft security updates and public advisory evidence: affected products, fixing updates, exploitation and source coverage.

September 2026: 998 CVEs · 132 critical · 2 exploited · 2 in CISA KEV

Act first · October 2026

Exploited, KEV-listed, or publicly disclosed
CVE-2026-96951ImportantExploitedCISA KEV · due 16 OctSFBNetwork
Windows Shell Security Feature Bypass Vulnerability
CVSS 8.8 KB5126646KB5126651KB5126653+6
Patch next · critical, "exploitation more likely", or top 5% EPSS · needs an update183
CVSS 8.1 · EPSS 1.4% KB5128895KB5128896KB5128897+1
CVSS 8.1 · EPSS 1.0% KB5126646KB5126651KB5126653+7
CVSS 8.8 · EPSS 2.7% KB5129955KB5129956KB5129957+1
Showing 3 of 183All critical

CVEs · October 2026

262 matches · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-70084 Windows Projected File System Information Disclosure VulnerabilityWindows Projected File System Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+5
CVE-2026-70090 Windows Netlogon Information Disclosure VulnerabilityWindows Netlogon Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70128 HID Parser Library Information Disclosure VulnerabilityHID Parser Library Important 5.50.4%Information DisclosureLocal
KB5126646KB5126651+5
CVE-2026-70135 Windows Remote POS Driver Information Disclosure VulnerabilityWindows Remote POS Driver Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+6
CVE-2026-70137 Windows Remote Access Connection Manager Information Disclosure VulnerabilityWindows Remote Access Connection Manager Important 5.50.4%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70141 Microsoft Windows Search Component Information Disclosure VulnerabilityMicrosoft Windows Search Component Important 5.50.4%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70173 Microsoft Windows Search Component Information Disclosure VulnerabilityMicrosoft Windows Search Component Important 5.50.4%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70199 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 5.50.9%Information DisclosureLocal Revised 10 Nov
KB5126646KB5126651+8
CVE-2026-70208 HTTP.sys Information Disclosure VulnerabilityWindows HTTP.sys Important 5.50.4%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70211 Win32k Information Disclosure VulnerabilityWindows Win32 Kernel Subsystem Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70214 Microsoft Office Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.6%Information DisclosureLocal
—
CVE-2026-70227 Windows Device Association Service Information Disclosure VulnerabilityWindows Device Association Service Important 5.50.5%Information DisclosureLocal
KB5126646KB5126653+2

Advisories · October 2026

MSRC guidance without a CVE of its own · 1 advisory
Hardening changes for ReFS volumes on removable mediaStarting with Windows updates released on and after October 13, 2026, Microsoft is making hardening changes to the Resilient File System (ReFS) . This change is not enable by default until 2027. Please see Hardening changes for ReFS volumes on removable media for more information.
Published 13 Oct28 affected products
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 11 Nov 20:03 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current