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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

400 matches · most urgent first CSVText
Fixed by KB5123065Clear
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-69839 Windows iSCSI Target Service Denial of Service VulnerabilityWindows iSCSI Target Service Important 6.51.1%DoSNetwork
KB5122871KB5122876+4
CVE-2026-72939 Windows Routing and Remote Access Service (RRAS) Denial of Service VulnerabilityWindows Routing and Remote Access Service (RRAS) Important 6.51.1%DoSNetwork
KB5122871KB5122876+8
CVE-2026-78453 Microsoft Windows SCSI Class System File Information Disclosure VulnerabilityMicrosoft Windows SCSI Class System File Important 6.50.9%Information DisclosureNetwork Revised 7 Oct
KB5122871KB5122876+8
CVE-2026-69878 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 6.40.3%RCELocal
KB5122871KB5122876+4
CVE-2026-70582 Windows Management Instrumentation Elevation of Privilege VulnerabilityWindows Management Instrumentation Important 6.40.2%EoPLocal
KB5122871KB5122876+8
CVE-2026-71338 Windows Failover Cluster Elevation of Privilege VulnerabilityWindows Failover Cluster Important 6.40.3%EoPLocal
KB5122871KB5122876+4
CVE-2026-77887 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 6.40.3%RCELocal
KB5122871KB5122876+4
CVE-2026-77891 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 6.40.3%RCELocal
KB5122871KB5122876+4
CVE-2026-69803 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information DisclosureNetwork Revised 24 Sep
KB5122871KB5122876+4
CVE-2026-69929 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information DisclosureNetwork
KB5122871KB5122876+4
CVE-2026-69930 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information DisclosureNetwork
KB5122871KB5122876+4
CVE-2026-70091 Windows DNS Denial of Service VulnerabilityWindows DNS Important 5.90.7%DoSNetwork
KB5122871KB5122876+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 12 Nov 00:15 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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