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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-2026-83684 Windows iSCSI Target Service Information Disclosure VulnerabilityWindows iSCSI Target Service Important 7.51.0%Information DisclosureNetwork
KB5131077KB5131080+3
CVE-2026-83739 Windows Bluetooth Service Remote Code Execution VulnerabilityWindows Bluetooth Service Important 7.50.5%RCEAdjacent Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83754 Microsoft OpenSSH for Windows Remote Code Execution VulnerabilityOpenSSH for Windows Important 7.50.7%RCENetwork Fix has a known issue
KB5126646KB5126651+5
CVE-2026-83795 Windows Internet Key Exchange (IKE) Extension Denial of Service VulnerabilityWindows IKE Extension Important 7.51.3%DoSNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83843 Windows Internet Key Exchange (IKE) Extension Denial of Service VulnerabilityWindows Internet Key Exchange (IKE) Protocol Important 7.51.3%DoSNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-83855 Windows WLAN Service Denial of Service VulnerabilityWindows WLAN Service Important 7.51.3%DoSNetwork Fix has a known issue
KB5126646KB5126653+2
CVE-2026-83856 Windows Event Logging Service Remote Code Execution VulnerabilityWindows Event Logging Service Important 7.50.6%RCENetwork Fix has a known issue
KB5126646KB5126653+3
CVE-2026-83860 Windows GDI Denial of Service VulnerabilityWindows GDI Important 7.51.3%DoSNetwork Fix has a known issueRevised 4 Nov
KB5126646KB5126651+8
CVE-2026-83989 Windows Services for NFS ONCRPC XDR Driver Denial of Service VulnerabilityWindows Services for NFS ONCRPC XDR Driver Important 7.51.2%DoSNetwork
KB5122871KB5122876+8
CVE-2026-84001 Windows Key Distribution Center Denial of Service VulnerabilityWindows Key Distribution Center Important 7.51.2%DoSNetwork
KB5122871KB5122876+8
CVE-2026-84017 Windows Routing and Remote Access Service (RRAS) Denial of Service VulnerabilityWindows Routing and Remote Access Service (RRAS) Important 7.51.1%DoSNetwork Fix has a known issue
KB5126646KB5126651+8
CVE-2026-85319 Active Directory Federation Services (AD FS) Denial of Service VulnerabilityActive Directory Federation Services (AD FS) Important 7.51.1%DoSNetwork Fix has a known issue
KB5126646KB5126651+4

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 13 Nov 11:05 UTC · 270 of 275 readable · 268 fully read · documentation 469/469 current

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