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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

9 matches in Server Software · most urgent first CSVText
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-69356 Microsoft Exchange Server Spoofing VulnerabilityMicrosoft Exchange Server Important 9.30.8%SpoofingNetwork
KB5121608KB5121609+2
CVE-2026-69641 Microsoft Exchange Server Elevation of Privilege VulnerabilityMicrosoft Exchange Server Important 9.10.9%EoPNetwork
KB5121608KB5121609+2
CVE-2026-69355 Microsoft Exchange Server Remote Code Execution VulnerabilityMicrosoft Exchange Server Important 8.80.9%RCENetwork
KB5121608KB5121609+2
CVE-2026-55007 Microsoft Exchange Server Remote Code Execution VulnerabilityMicrosoft Exchange Server Important 8.10.7%RCENetwork
KB5121608KB5121609+1
CVE-2026-69380 Microsoft Exchange Server Elevation of Privilege VulnerabilityMicrosoft Exchange Server Important 8.10.7%EoPNetwork
KB5121608KB5121609+2
CVE-2026-69378 Microsoft Exchange Server Denial of Service VulnerabilityMicrosoft Exchange Server Important 7.51.2%DoSNetwork
KB5121608KB5121609+2
CVE-2026-69361 Microsoft Exchange Server Spoofing VulnerabilityMicrosoft Exchange Server Important 6.50.8%SpoofingNetwork
KB5121608KB5121609+2
CVE-2026-69375 Microsoft Exchange Server Tampering VulnerabilityMicrosoft Exchange Server Important 6.50.6%TamperingNetwork
KB5121608KB5121609+2
CVE-2026-69382 Microsoft Exchange Server Information Disclosure VulnerabilityMicrosoft Exchange Server Important 5.90.5%Information DisclosureNetwork
KB5121608KB5121609+2
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 05:47 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current