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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

CVEs · all collected releases

2592 matches in Windows · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-83759 Windows Encrypting File System (EFS) Remote Code Execution VulnerabilityWindows Encrypting File System (EFS) Important 8.80.9%RCENetwork Fix has a known issue
KB5126646KB5126651+6
CVE-2026-83771 Windows Camera Frame Server Monitor Elevation of Privilege VulnerabilityWindows Camera Frame Server Monitor Important 8.80.6%EoPAdjacent Fix has a known issue
KB5126646KB5126653+3
CVE-2026-83777 Windows Bluetooth Service Elevation of Privilege VulnerabilityWindows Bluetooth Service Important 8.80.6%EoPAdjacent Fix has a known issue
KB5126646KB5126651+6
CVE-2026-83778 Microsoft Internet Messaging API Remote Code Execution VulnerabilityMicrosoft Internet Messaging API Important 8.80.9%RCENetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83784 Windows Encrypting File System (EFS) Elevation of Privilege VulnerabilityWindows Encrypting File System (EFS) Important 8.81.1%EoPNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83789 Windows SMB Client Elevation of Privilege VulnerabilityWindows SMB Client Important 8.80.9%EoPNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83797 Windows Partition Management Driver Remote Code Execution VulnerabilityWindows Partition Management Driver Important 8.80.9%RCENetwork Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83851 Windows Partition Management Driver Elevation of Privilege VulnerabilityWindows Partition Management Driver Important 8.80.8%EoPNetwork Fix has a known issueRevised 30 Oct
KB5126646KB5126651+5
CVE-2026-83862 Windows Network Load Balancing Remote Code Execution VulnerabilityWindows Network Load Balancing Important 8.80.4%RCEAdjacent Fix has a known issueRevised 23 Oct
KB5126646KB5126651+4
CVE-2026-83874 Windows Event Tracing Remote Code Execution VulnerabilityWindows Event Tracing Important 8.80.9%RCENetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83889 Windows DNS Server Remote Code Execution VulnerabilityRole: DNS Server Important 8.81.1%RCENetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83923 Microsoft OpenSSH for Windows Remote Code Execution VulnerabilityOpenSSH for Windows Important 8.81.0%RCENetwork Fix has a known issueRevised 4 Nov
KB5126646KB5126651+5

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 12 Nov 21:45 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current

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