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Security

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

Security Update Guide CISA KEV
1474Microsoft CVEsreleased Tue 13 Oct 94Critical81 need an update · 13 fixed service-side 1Exploited in the wild
1Publicly disclosed
1In CISA KEV
256Revised since release

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-2026-69914 Windows AppX Deployment Service Information Disclosure VulnerabilityWindows AppX Deployment Service Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+5
CVE-2026-69919 Windows Cryptographic Services Information Disclosure VulnerabilityWindows Cryptographic Services Important 5.50.5%Information DisclosureLocal
KB5126646KB5127646+1
CVE-2026-69954 Windows Overlay Filter Information Disclosure VulnerabilityWindows Overlay Filter Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-69967 Windows Overlay Filter Information Disclosure VulnerabilityWindows Overlay Filter Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-69971 Windows Kernel-Mode Drivers Information Disclosure VulnerabilityWindows Kernel-Mode Drivers Important 5.50.4%Information DisclosureLocal
KB5126646KB5127646+1
CVE-2026-69999 Windows Update Information Disclosure VulnerabilityWindows Update Important 5.50.5%Information DisclosureLocal
KB5126646KB5126653+2
CVE-2026-70011 Windows IP Over USB Service Information Disclosure VulnerabilityWindows IP Over USB Service Important 5.50.5%Information DisclosureLocal
KB5126646KB5126653+4
CVE-2026-70017 Windows Secure Kernel Mode Information Disclosure VulnerabilityWindows Secure Kernel Mode Important 5.50.5%Information DisclosureLocal Revised 10 Nov
KB5126646KB5126651+5
CVE-2026-70041 Windows CD-ROM Driver Information Disclosure VulnerabilityWindows CD-ROM Driver Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70044 Microsoft Windows Media Foundation Information Disclosure VulnerabilityMicrosoft Windows Media Foundation Important 5.50.6%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70055 Windows Cryptographic Services Information Disclosure VulnerabilityWindows Cryptographic Services Important 5.50.9%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-70074 Windows DNS Information Disclosure VulnerabilityWindows DNS Important 5.50.5%Information DisclosureLocal Revised 20 Oct
KB5126646KB5126651+4

Advisories · October 2026

MSRC guidance without a CVE of its own · 1 advisory
ADV260001
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

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