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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

349 matches · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-100202 Windows Message Queuing Queue Manager Remote Code Execution VulnerabilityWindows Message Queuing Queue Manager Critical 9.81.1%RCENetwork
KB5126646KB5126651+8
CVE-2026-100219 Microsoft QUIC Remote Code Execution VulnerabilityMicrosoft QUIC Critical 9.81.1%RCENetwork
KB5126646KB5126653+3
CVE-2026-105016 Microsoft QUIC Remote Code Execution VulnerabilityMicrosoft QUIC Critical 9.81.7%RCENetwork
KB5126646KB5126653+5
CVE-2026-70147 Microsoft PostScript Printer Driver Remote Code Execution VulnerabilityMicrosoft PostScript Printer Driver Critical 9.81.1%RCENetwork
KB5126646KB5126651+8
CVE-2026-70153 Microsoft PostScript Printer Driver Remote Code Execution VulnerabilityMicrosoft PostScript Printer Driver Critical 9.81.1%RCENetwork
KB5126646KB5126651+8
CVE-2026-70242 Microsoft Office Outlook Remote Code Execution VulnerabilityMicrosoft Office Outlook Critical 9.81.6%RCENetwork
—
CVE-2026-70291 Microsoft Office Outlook Remote Code Execution VulnerabilityMicrosoft Office Outlook Critical 9.81.3%RCENetwork Revised 10 Nov
—
CVE-2026-70300 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Critical 9.81.1%RCENetwork
—
CVE-2026-88156 Microsoft Office Outlook Remote Code Execution VulnerabilityMicrosoft Office Outlook Critical 9.81.2%RCENetwork Revised 15 Oct
—
CVE-2026-88178 Microsoft Office PowerPoint Remote Code Execution VulnerabilityMicrosoft Office PowerPoint Critical 9.81.0%RCENetwork Revised 15 Oct
—
CVE-2026-96934 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Critical 9.80.9%RCENetwork
KB5126646KB5126651+4
CVE-2026-97016 Microsoft Office Outlook Remote Code Execution VulnerabilityMicrosoft Office Outlook Critical 9.81.2%RCENetwork
—

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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