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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

11 matches in Developer Tools · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
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-2026-96957 .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
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CVE-2026-102231 Visual Studio Code Security Feature Bypass VulnerabilityVisual Studio Code Important 7.70.4%SFBLocal
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CVE-2026-102234 Visual Studio Code Security Feature Bypass VulnerabilityVisual Studio Code Important 7.40.8%SFBNetwork
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CVE-2026-102232 Visual Studio Code Security Feature Bypass VulnerabilityVisual Studio Code Important 7.00.3%SFBLocal
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CVE-2026-70194 .NET Framework Security Feature Bypass Vulnerability.NET Framework Important 6.50.5%SFBNetwork
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CVE-2026-96238 .NET Security Feature Bypass Vulnerability.NET Important 6.50.3%SFBNetwork Revised 15 Oct
KB5130034KB5130035+1
CVE-2026-96303 Microsoft PowerShell Security Feature Bypass VulnerabilityMicrosoft PowerShell Important 6.50.7%SFBNetwork Revised 22 Oct
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CVE-2026-102851 Visual Studio Code Security Feature Bypass VulnerabilityVisual Studio Code Important 6.10.3%SFBLocal
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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 15:16 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current