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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-2026-88132 Azure Key Vault Information Disclosure VulnerabilityAzure Key Vault Important 5.90.3%Information DisclosureNetwork
—
CVE-2026-85816 Windows Wi-Fi Driver Information Disclosure VulnerabilityWindows Wi-Fi Driver Important 5.70.5%Information DisclosureAdjacent
KB5126646KB5126651+6
CVE-2026-96865 Windows Secure Kernel Mode Information Disclosure VulnerabilityWindows Secure Kernel Mode Important 5.60.4%Information DisclosureLocal
KB5126646KB5126651+6
CVE-2026-102187 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-103567 Windows Broadcast DVR User Service Information Disclosure VulnerabilityWindows Broadcast DVR User Service Important 5.50.4%Information DisclosureLocal
KB5126651KB5126653+3
CVE-2026-105726 Microsoft Defender Information Disclosure VulnerabilityMicrosoft Defender Important 5.50.4%Information DisclosureLocal Revised 10 Nov
—
CVE-2026-105731 Microsoft Office Graphics Component Information Disclosure VulnerabilityMicrosoft Graphics Component Important 5.50.4%Information DisclosureLocal
—
CVE-2026-108462 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 5.50.9%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-62687 Windows Backup Engine Information Disclosure VulnerabilityWindows Backup Engine Important 5.50.5%Information DisclosureLocal
KB5126653KB5126657+2
CVE-2026-69644 Windows iSCSI Information Disclosure VulnerabilityWindows iSCSI Important 5.50.9%Information DisclosureLocal
KB5126646KB5126651+8
CVE-2026-69675 Windows Network File System Information Disclosure VulnerabilityWindows Network File System Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+4
CVE-2026-69721 Windows iSCSI Information Disclosure VulnerabilityWindows iSCSI Important 5.50.5%Information DisclosureLocal
KB5126646KB5126651+8

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