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Security

Microsoft security updates and public advisory evidence: affected products, fixing updates, exploitation and source coverage.

Act first · September 2026

Exploited, KEV-listed, or publicly disclosed
CVE-2026-81963ImportantExploitedCISA KEV · due 22 SepEoPLocal
Windows Update Stack Elevation of Privilege Vulnerability
CVSS 7.8 KB5122871KB5122880KB5124008+1
CVSS 7.8 KB5122876KB5122878KB5122882+3
Patch next · critical, "exploitation more likely", or top 5% EPSS · needs an update154
CVSS 9.8 · EPSS 1.0% KB5122871KB5122876KB5122882+3
CVSS 8.8 · EPSS 0.8% KB5122871KB5122876KB5122878+7
CVSS 9.0 · EPSS 0.7% No KB listed
Showing 3 of 154All critical

CVEs · September 2026

55 matches · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-68898 Windows iSCSI Denial of Service VulnerabilityWindows iSCSI Important 6.50.9%DoSNetwork
KB5122871KB5122876+8
CVE-2026-69374 Windows SMB Server Denial of Service VulnerabilityWindows SMB Server Important 6.51.1%DoSNetwork
KB5122871KB5122878+4
CVE-2026-69497 Windows DHCP Server Denial of Service VulnerabilityWindows DHCP Server Important 6.51.1%DoSNetwork
KB5122871KB5122876+4
CVE-2026-69781 Windows DHCP Client Denial of Service VulnerabilityWindows DHCP Client Important 6.50.6%DoSAdjacent
KB5122871KB5124008+1
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-2026-77896 Windows Remote Desktop Client Denial of Service VulnerabilityRemote Desktop Client Important 6.50.7%DoSNetwork
KB5122871KB5122876+6
CVE-2026-69304 ASP.NET Core Denial of Service VulnerabilityASP.NET Core Important 5.90.9%DoSNetwork Revised 25 Sep
KB5126104KB5126105+1
CVE-2026-70091 Windows DNS Denial of Service VulnerabilityWindows DNS Important 5.90.7%DoSNetwork
KB5122871KB5122876+4
CVE-2026-72978 Active Directory Federation Services (AD FS) Denial of Service VulnerabilityActive Directory Federation Services (AD FS) Important 5.91.0%DoSNetwork
KB5122871KB5122876+4
CVE-2026-78523 Windows DNS Server Denial of Service VulnerabilityWindows DNS Important 5.91.0%DoSNetwork
KB5122871KB5122876+4
CVE-2026-69372 Windows Network File System Denial of Service VulnerabilityWindows Network File System Important 5.70.9%DoSNetwork
KB5122871KB5122876+4
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 11 Nov 11:03 UTC · 264 of 275 readable · 263 fully read · documentation 469/469 current