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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 CVSSEPSSImpact StatusFixed by
CVE-2026-83667 Windows Active Directory Domain Services Denial of Service VulnerabilityActive Directory Domain Services Important 6.51.1%DoSNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83683 Windows Encrypting File System (EFS) Information Disclosure VulnerabilityWindows Encrypting File System (EFS) Important 6.51.1%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83685 Windows Internet Key Exchange (IKE) Extension Denial of Service VulnerabilityWindows IKE Extension Important 6.51.1%DoSNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83703 Windows Wi-Fi Driver Denial of Service VulnerabilityWindows Wi-Fi Driver Important 6.50.6%DoSAdjacent Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83888 Windows CD-ROM Driver Elevation of Privilege VulnerabilityWindows CD-ROM Driver Important 6.50.9%EoPNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-84007 Remote Desktop Gateway Service Information Disclosure VulnerabilityRemote Desktop Gateway Service Important 6.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+4
CVE-2026-85337 Windows Remote Desktop Client Information Disclosure VulnerabilityRemote Desktop Client Important 6.50.9%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85797 Windows GDI Information Disclosure VulnerabilityWindows GDI Important 6.50.9%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85805 Microsoft PowerShell Security Feature Bypass VulnerabilityWindows PowerShell Important 6.50.6%SFBNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85821 Windows Universal Disk Format File System Driver (UDFS) Information Disclosure VulnerabilityWindows Universal Disk Format File System Driver (UDFS) Important 6.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85840 Windows Event Viewer Information Disclosure VulnerabilityWindows Event Viewer Important 6.51.0%Information DisclosureNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85847 Windows Print Spooler Components Information Disclosure VulnerabilityWindows Print Spooler Components Important 6.50.7%Information DisclosureNetwork Fix has a known issue
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 17 Oct 05:26 UTC · 253 of 255 readable · 252 fully read · documentation 0/410 current

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