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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
Patch next · critical, "exploitation more likely", or top 5% EPSS · needs an update183
CVSS 8.1 · EPSS 1.4% KB5128895KB5128896KB5128897+1
CVSS 8.8 · EPSS 2.7% KB5129955KB5129956KB5129957+1
Showing 3 of 183All critical

CVEs · October 2026

200 matches in Windows · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-103569 Windows IKE Extension Information Disclosure VulnerabilityWindows IKE Extension Important 7.51.1%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-69454 Microsoft Azure Attestation service and Device Health Attestation Service Information Disclosure VulnerabilityMicrosoft Azure Attestation service and Device Health Attestation Service Important 7.51.1%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+1
CVE-2026-69577 Microsoft Azure Attestation service and Device Health Attestation Service Information Disclosure VulnerabilityMicrosoft Azure Attestation service and Device Health Attestation Service Important 7.51.1%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+1
CVE-2026-83670 Function Discovery Service (fdwsd.dll) Information Disclosure VulnerabilityFunction Discovery Service (fdwsd.dll) Important 7.51.1%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85322 Windows Routing and Remote Access Service (RRAS) Information Disclosure VulnerabilityWindows Routing and Remote Access Service (RRAS) Important 7.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85334 Windows Message Queuing Queue Manager Information Disclosure VulnerabilityWindows Message Queuing Queue Manager Important 7.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85353 Windows Print Spooler Components Information Disclosure VulnerabilityWindows Print Spooler Components Important 7.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-96245 Windows Routing and Remote Access Service (RRAS) Information Disclosure VulnerabilityWindows Routing and Remote Access Service (RRAS) Important 7.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-96246 Network Policy Server (NPS) Information Disclosure VulnerabilityNetwork Policy Server (NPS) Important 7.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-97788 Active Directory Federation Services (AD FS) Information Disclosure VulnerabilityActive Directory Federation Services (AD FS) Important 7.50.9%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+26
CVE-2026-108127 Role: DNS Server Information Disclosure VulnerabilityRole: DNS Server Important 6.51.1%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-108128 Role: DNS Server Information Disclosure VulnerabilityRole: DNS Server Important 6.51.1%Information DisclosureNetwork Fix has a known issue
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 12 Nov 17:32 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current