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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-2026-85888 Microsoft SQL Server Information Disclosure VulnerabilitySQL Server Important 7.70.8%Information DisclosureNetwork
KB5126934KB5126967+6
CVE-2026-88081 Microsoft SQL Server Information Disclosure VulnerabilitySQL Server Important 7.70.8%Information DisclosureNetwork
KB5126934KB5126967+6
CVE-2026-103569 Windows IKE Extension Information Disclosure VulnerabilityWindows IKE Extension Important 7.51.1%Information DisclosureNetwork
KB5126646KB5126651+8
CVE-2026-105728 Dynamics Business Central Information Disclosure VulnerabilityDynamics Business Central Important 7.51.0%Information DisclosureNetwork Revised 26 Oct
—
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
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
KB5126646KB5126651+1
CVE-2026-70281 Microsoft Office Outlook Information Disclosure VulnerabilityMicrosoft Office Outlook Important 7.51.1%Information DisclosureNetwork Revised 15 Oct
—
CVE-2026-83670 Function Discovery Service (fdwsd.dll) Information Disclosure VulnerabilityFunction Discovery Service (fdwsd.dll) Important 7.51.1%Information DisclosureNetwork
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
KB5126646KB5126651+8
CVE-2026-85334 Windows Message Queuing Queue Manager Information Disclosure VulnerabilityWindows Message Queuing Queue Manager Important 7.51.0%Information DisclosureNetwork
KB5126646KB5126651+8
CVE-2026-85353 Windows Print Spooler Components Information Disclosure VulnerabilityWindows Print Spooler Components Important 7.51.0%Information DisclosureNetwork
KB5126646KB5126651+8
CVE-2026-85891 Azure HDInsight Information Disclosure VulnerabilityAzure HDInsight Important 7.50.9%Information DisclosureNetwork
—

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 15:16 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current

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