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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

349 matches · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-96096 Windows Media Player Remote Code Execution VulnerabilityWindows Media Player Important 9.80.7%RCENetwork
KB5126646KB5126651+8
CVE-2026-96113 Windows Domain Name Service Remote Code Execution VulnerabilityRole: DNS Server Important 9.80.9%RCENetwork
KB5126646KB5126651+4
CVE-2026-96219 Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution VulnerabilityWindows Local Security Authority Subsystem Service (LSASS) Important 9.80.9%RCENetwork
KB5126646KB5126651+5
CVE-2026-96320 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 9.81.1%RCENetwork
KB5126646KB5126651+4
CVE-2026-96864 Microsoft Failover Cluster Virtual Driver Remote Code Execution VulnerabilityMicrosoft Failover Cluster Virtual Driver Important 9.80.6%RCENetwork
KB5126646KB5126651+4
CVE-2026-96909 Windows BitLocker Remote Code Execution VulnerabilityWindows BitLocker Important 9.81.0%RCENetwork
KB5126646KB5126653+3
CVE-2026-96924 Windows OLE Remote Code Execution VulnerabilityWindows OLE Important 9.81.0%RCENetwork
KB5126646KB5126651+8
CVE-2026-97805 Windows Partition Management Driver Remote Code Execution VulnerabilityWindows Partition Management Driver Important 9.81.1%RCENetwork
KB5126646KB5126651+8
CVE-2026-97815 Windows Error Reporting Remote Code Execution VulnerabilityWindows Error Reporting Important 9.80.9%RCENetwork
KB5126646KB5126651+8
CVE-2026-97816 Microsoft OpenSSH for Windows Remote Code Execution VulnerabilityOpenSSH for Windows Important 9.81.0%RCENetwork
KB5126646KB5126651+5
CVE-2026-102238 Visual Studio Code Remote Code Execution VulnerabilityVisual Studio Code Important 9.60.8%RCENetwork
—
CVE-2026-100212 Microsoft Office Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 8.80.9%RCENetwork Revised 15 Oct
KB5002928

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 16:19 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current