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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-2026-69997 Remote Desktop Client Remote Code Execution VulnerabilityRemote Desktop Client Important 7.50.6%RCENetwork
KB5126646KB5126651+8
CVE-2026-69998 Remote Desktop Client Remote Code Execution VulnerabilityRemote Desktop Client Important 7.50.6%RCENetwork
KB5126646KB5126651+8
CVE-2026-70004 Remote Desktop Client Remote Code Execution VulnerabilityRemote Desktop Client Important 7.50.6%RCENetwork
KB5126646KB5126651+8
CVE-2026-70006 Remote Desktop Client Remote Code Execution VulnerabilityRemote Desktop Client Important 7.50.6%RCENetwork
KB5126646KB5126651+8
CVE-2026-70012 Remote Desktop Client Remote Code Execution VulnerabilityRemote Desktop Client Important 7.50.6%RCENetwork
KB5126646KB5126651+8
CVE-2026-70014 Windows Cryptographic Services Remote Code Execution VulnerabilityWindows Cryptographic Services Important 7.50.8%RCENetwork
KB5126646KB5126651+8
CVE-2026-70058 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 7.51.3%RCENetwork
KB5126646KB5126651+4
CVE-2026-70095 Windows iSCSI Remote Code Execution VulnerabilityWindows iSCSI Important 7.50.6%RCENetwork Revised 14 Oct
KB5126646KB5126651+8
CVE-2026-70207 Network Policy Server (NPS) Remote Code Execution VulnerabilityNetwork Policy Server (NPS) Important 7.50.8%RCENetwork
KB5126646KB5126651+8
CVE-2026-83739 Windows Bluetooth Service Remote Code Execution VulnerabilityWindows Bluetooth Service Important 7.50.5%RCEAdjacent
KB5126646KB5126651+5
CVE-2026-83754 Microsoft OpenSSH for Windows Remote Code Execution VulnerabilityOpenSSH for Windows Important 7.50.7%RCENetwork
KB5126646KB5126651+5
CVE-2026-83856 Windows Event Logging Service Remote Code Execution VulnerabilityWindows Event Logging Service Important 7.50.6%RCENetwork
KB5126646KB5126653+3

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