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Security

CVE detail from Microsoft's public MSRC CVRF API, cross-checked with CISA's Known Exploited Vulnerabilities catalog. Counts cover Microsoft-issued CVEs; republished third-party CVEs such as Chromium or Linux are hidden unless you include them.

Security Update Guide CISA KEV

CVEs · all collected releases

612 matches · most urgent first CSV Text
Fixed by KB5126835Clear
CVE Vulnerability Severity CVSSImpact StatusFixed by
CVE-2026-83642 Windows Domain Name Service Remote Code Execution VulnerabilityRole: DNS Server Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83643 Windows Error Reporting Remote Code Execution VulnerabilityWindows Error Reporting Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83688 Remote Desktop Client Remote Code Execution VulnerabilityRemote Desktop Client Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83725 Microsoft Windows Search Component Remote Code Execution VulnerabilityMicrosoft Windows Search Component Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83728 Windows Hyper-V Spoofing VulnerabilityWindows Hyper-V Important 8.8SpoofingLocal
KB5126646KB5126651+8
CVE-2026-83778 Microsoft Internet Messaging API Remote Code Execution VulnerabilityMicrosoft Internet Messaging API Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83784 Windows Encrypting File System (EFS) Elevation of Privilege VulnerabilityWindows Encrypting File System (EFS) Important 8.8EoPNetwork
KB5126646KB5126651+8
CVE-2026-83789 Windows SMB Client Elevation of Privilege VulnerabilityWindows SMB Client Important 8.8EoPNetwork
KB5126646KB5126651+8
CVE-2026-83874 Windows Event Tracing Remote Code Execution VulnerabilityWindows Event Tracing Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83889 Windows DNS Server Remote Code Execution VulnerabilityRole: DNS Server Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-83928 Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution VulnerabilityWindows Local Security Authority Subsystem Service (LSASS) Important 8.8RCENetwork
KB5126646KB5126651+8
CVE-2026-85339 Windows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityWindows Routing and Remote Access Service (RRAS) Important 8.8RCENetwork
KB5126646KB5126651+8

Advisories

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 14 Oct 23:05 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current

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