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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

43 matches · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-96951 Windows Shell Security Feature Bypass VulnerabilityWindows Shell Important 8.89.8%SFBNetwork ExploitedCISA KEV · due 16 OctRevised 26 Oct
KB5126646KB5126651+7
CVE-2026-108398 .NET Framework Security Feature Bypass Vulnerability.NET Framework Important 8.80.8%SFBLocal Disclosed
KB5126868KB5127666+14
CVE-2026-70188 ASP.NET Core Security Feature Bypass VulnerabilityASP.NET Core Important 9.10.9%SFBNetwork Revised 15 Oct
KB5130034KB5130035+1
CVE-2026-108463 Windows SmartScreen Security Feature Bypass VulnerabilityWindows SmartScreen Important 8.81.0%SFBNetwork
KB5127646KB5127648
CVE-2026-70185 Microsoft PowerShell Security Feature Bypass VulnerabilityWindows PowerShell Important 8.80.3%SFBLocal
KB5126646KB5126651+8
CVE-2026-96196 Microsoft Edge (Chromium-based) Security Feature Bypass VulnerabilityMicrosoft Edge (Chromium-based) Important 8.80.8%SFBNetwork
—
CVE-2026-96957 .NET Security Feature Bypass Vulnerability.NET Important 8.80.5%SFBNetwork Revised 15 Oct
KB5130036
CVE-2026-102233 Visual Studio Code Security Feature Bypass VulnerabilityVisual Studio Code Important 7.80.4%SFBLocal
—
CVE-2026-108433 Microsoft Office Word Security Feature Bypass VulnerabilityMicrosoft Office Word Important 7.80.4%SFBLocal
—
CVE-2026-49785 UEFI Secure Boot Security Feature Bypass VulnerabilityWindows UEFI Important 7.80.4%SFBLocal
KB5126646KB5126651+8
CVE-2026-88210 Microsoft Office Word Security Feature Bypass VulnerabilityMicrosoft Office Word Important 7.80.4%SFBLocal Revised 15 Oct
—
CVE-2026-102231 Visual Studio Code Security Feature Bypass VulnerabilityVisual Studio Code Important 7.70.4%SFBLocal
—

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

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