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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

349 matches · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-88186 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.9%RCENetwork Revised 15 Oct
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CVE-2026-88196 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 8.80.7%RCENetwork Revised 15 Oct
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CVE-2026-88197 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 8.80.5%RCENetwork Revised 15 Oct
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CVE-2026-88202 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.8%RCENetwork Revised 10 Nov
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CVE-2026-88219 RPC Runtime Library Remote Code Execution VulnerabilityRPC Runtime Important 8.80.9%RCENetwork
KB5126646KB5126651+8
CVE-2026-94512 SQL Server Remote Code Execution VulnerabilitySQL Server Important 8.80.7%RCENetwork
KB5126967KB5129299+7
CVE-2026-96192 Microsoft Edge (Chromium-based) Remote Code Execution VulnerabilityMicrosoft Edge for iOS Important 8.80.6%RCENetwork
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CVE-2026-96198 Microsoft Edge (Chromium-based) Remote Code Execution VulnerabilityMicrosoft Edge (Chromium-based) Important 8.80.6%RCENetwork Revised 26 Oct
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CVE-2026-96199 Microsoft Edge (Chromium-based) Remote Code Execution VulnerabilityMicrosoft Edge (Chromium-based) Important 8.80.6%RCENetwork Revised 26 Oct
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CVE-2026-96224 .NET Remote Code Execution Vulnerability.NET Important 8.80.8%RCENetwork Revised 15 Oct
KB5126868KB5127660+20
CVE-2026-96230 ASP.NET Core Remote Code Execution VulnerabilityASP.NET Core Important 8.80.9%RCENetwork
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CVE-2026-96235 .NET Remote Code Execution Vulnerability.NET Important 8.80.9%RCENetwork Revised 15 Oct
KB5130034KB5130035+1

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 18:25 UTC · 274 of 275 readable · 273 fully read · documentation 469/469 current