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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

20 matches in Other · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-96222 Active Directory Federation Services (AD FS) Spoofing VulnerabilityActive Directory Federation Services (AD FS) Critical 7.40.6%SpoofingNetwork Fix has a known issueRevised 16 Oct
KB5126646KB5126651+21
CVE-2026-62840 Linux Kernel Elevation of Privilege VulnerabilityLinux Kernel Critical —0.2%EoP
—
CVE-2026-102870 ASP.NET Core Remote Code Execution VulnerabilityASP.NET Core Important 8.80.9%RCENetwork Revised 25 Oct
KB5133966
CVE-2026-96230 ASP.NET Core Remote Code Execution VulnerabilityASP.NET Core Important 8.80.9%RCENetwork
—
CVE-2026-70175 ASP.NET Core Elevation of Privilege VulnerabilityASP.NET Core Important 8.10.7%EoPNetwork
KB5130034KB5130035+4
CVE-2026-88094 Azure Storage Library Elevation of Privilege VulnerabilityAzure Storage Library Important 8.10.8%EoPNetwork Revised 26 Oct
—
CVE-2026-102204 Windows Subsystem for Linux Elevation of Privilege VulnerabilityWindows Subsystem for Linux Important 7.80.4%EoPLocal Revised 20 Oct
—
CVE-2026-109468 ASP.NET Core Denial of Service VulnerabilityASP.NET Core Important 7.51.0%DoSNetwork Revised 16 Oct
—
CVE-2026-70159 ASP.NET Core Denial of Service VulnerabilityASP.NET Core Important 7.51.2%DoSNetwork Revised 15 Oct
—
CVE-2026-70179 ASP.NET Core Elevation of Privilege VulnerabilityASP.NET Core Important 7.50.6%EoPNetwork Revised 15 Oct
—
CVE-2026-84008 .NET Denial of Service Vulnerability.NET Important 7.51.0%DoSNetwork Fix has a known issueRevised 15 Oct
KB5126868KB5127660+17
CVE-2026-96958 .NET Denial of Service Vulnerability.NET Important 7.51.2%DoSNetwork Fix has a known issueRevised 15 Oct
KB5126868KB5127660+17

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 08:00 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current