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Security

CVE detail from Microsoft's public MSRC CVRF API, cross-checked with CISA's Known Exploited Vulnerabilities catalog. Counts cover Microsoft-issued CVEs; republished third-party CVEs such as Chromium or Linux are hidden unless you include them.

Security Update Guide CISA KEV
998Microsoft CVEsreleased Tue 8 Sep 132Critical105 need an update · rest fixed service-side 2Exploited in the wild
0Publicly disclosed
2In CISA KEV
149Revised since release

Act first · September 2026

Exploited, KEV-listed, or publicly disclosed
Elevation of Privilege · CVSS 7.8 KB5122871KB5122880KB5124008+1
Elevation of Privilege · CVSS 7.8 KB5122876KB5122878KB5122882+3
Patch next · critical, "exploitation more likely", or top 5% EPSS · needs an update155
Remote Code Execution · CVSS 9.8 · EPSS 1.0% KB5122871KB5122876KB5122882+3
Remote Code Execution · CVSS 8.8 · EPSS 0.8% KB5122871KB5122876KB5122878+7
Elevation of Privilege · CVSS 9.0 · EPSS 0.7% No KB listed
Remote Code Execution · CVSS 7.5 · EPSS 0.7% KB5122871KB5122876KB5122878+7
Information Disclosure · CVSS 5.5 · EPSS 0.4% KB5122871KB5122880KB5124008+1
Remote Code Execution · CVSS 7.8 · EPSS 0.3% KB5122871KB5122876KB5122882+3
Remote Code Execution · CVSS 7.0 · EPSS 0.3% KB5122871KB5122876KB5122882+3
Remote Code Execution · CVSS 8.8 · EPSS 1.7% No KB listed
Showing 8 of 155All critical

CVEs · September 2026

998 matches · most urgent first CSV Text
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-69839 Windows iSCSI Target Service Denial of Service VulnerabilityWindows iSCSI Target Service Important 6.51.1%Denial of Service
KB5122871KB5122876+4
CVE-2026-70019 Windows Compressed Folder Information Disclosure VulnerabilityWindows Compressed Folder Important 6.51.0%Information Disclosure
KB5122871KB5122880+2
CVE-2026-72938 Microsoft Office PowerPoint Information Disclosure VulnerabilityMicrosoft Office PowerPoint Important 6.50.9%Information Disclosure Revised 17 Sep
—
CVE-2026-72939 Windows Routing and Remote Access Service (RRAS) Denial of Service VulnerabilityWindows Routing and Remote Access Service (RRAS) Important 6.51.1%Denial of Service
KB5122871KB5122876+8
CVE-2026-72942 Windows Spaceport.sys Information Disclosure VulnerabilityWindows Spaceport.sys Important 6.50.9%Information Disclosure
KB5122871KB5122876+7
CVE-2026-72956 Microsoft Office PowerPoint Information Disclosure VulnerabilityMicrosoft Office PowerPoint Important 6.50.9%Information Disclosure
—
CVE-2026-72974 Microsoft Office Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-72975 Microsoft Office PowerPoint Information Disclosure VulnerabilityMicrosoft Office PowerPoint Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002920
CVE-2026-72977 Microsoft Office PowerPoint Information Disclosure VulnerabilityMicrosoft Office PowerPoint Important 6.51.0%Information Disclosure Revised 17 Sep
KB5002920
CVE-2026-73029 Microsoft SQL Server Information Disclosure VulnerabilitySQL Server Important 6.51.0%Information Disclosure
KB5122768KB5122769+4
CVE-2026-77896 Windows Remote Desktop Client Denial of Service VulnerabilityRemote Desktop Client Important 6.50.9%Denial of Service
KB5122871KB5122876+6
CVE-2026-77911 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure
KB5002923
CVE-2026-78441 Windows OLE DB Information Disclosure VulnerabilityWindows OLE DB Important 6.50.9%Information Disclosure
KB5122772KB5122773+2
CVE-2026-78453 Microsoft Windows SCSI Class System File Information Disclosure VulnerabilityMicrosoft Windows SCSI Class System File Important 6.50.9%Information Disclosure
KB5122871KB5122876+8
CVE-2026-78502 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002923
CVE-2026-78503 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002923
CVE-2026-78515 Microsoft Office Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-78522 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure
KB5002923
CVE-2026-80073 Microsoft Office Outlook Information Disclosure VulnerabilityMicrosoft Office Outlook Important 6.50.9%Information Disclosure Revised 24 Sep
KB5002919
CVE-2026-80076 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
—
CVE-2026-80078 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
—
CVE-2026-80079 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure
KB5002923
CVE-2026-80082 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
—
CVE-2026-80084 Microsoft Office Outlook Information Disclosure VulnerabilityMicrosoft Office Outlook Important 6.50.9%Information Disclosure
KB5002898
CVE-2026-80086 Microsoft Office PowerPoint Information Disclosure VulnerabilityMicrosoft Office PowerPoint Important 6.50.9%Information Disclosure Revised 17 Sep
—
CVE-2026-80087 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-80088 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-80089 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-80090 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002923
CVE-2026-80091 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-81377 Visual Studio Code Tampering VulnerabilityVisual Studio Code Important 6.50.8%Tampering
—
CVE-2026-81381 GitHub Copilot and Visual Studio Code Information Disclosure VulnerabilityGitHub Copilot and Visual Studio Code Important 6.50.9%Information Disclosure
—
CVE-2026-69878 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 6.40.3%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-70582 Windows Management Instrumentation Elevation of Privilege VulnerabilityWindows Management Instrumentation Important 6.40.2%Elevation of Privilege
KB5122871KB5122876+8
CVE-2026-71338 Windows Failover Cluster Elevation of Privilege VulnerabilityWindows Failover Cluster Important 6.40.3%Elevation of Privilege
KB5122871KB5122876+4
CVE-2026-72947 Windows File History Service Elevation of Privilege VulnerabilityWindows File History Service Important 6.40.3%Elevation of Privilege
KB5122876KB5122878+4
CVE-2026-77887 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 6.40.3%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-77891 Windows DHCP Server Remote Code Execution VulnerabilityWindows DHCP Server Important 6.40.3%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-69304 ASP.NET Core Denial of Service VulnerabilityASP.NET Core Important 5.90.9%Denial of Service Revised 25 Sep
KB5126104KB5126105+1
CVE-2026-69382 Microsoft Exchange Server Information Disclosure VulnerabilityMicrosoft Exchange Server Important 5.90.5%Information Disclosure
KB5121608KB5121609+2
CVE-2026-69803 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information Disclosure Revised 24 Sep
KB5122871KB5122876+4
CVE-2026-69929 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information Disclosure
KB5122871KB5122876+4
CVE-2026-69930 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information Disclosure
KB5122871KB5122876+4
CVE-2026-70091 Windows DNS Denial of Service VulnerabilityWindows DNS Important 5.90.7%Denial of Service
KB5122871KB5122876+4
CVE-2026-70124 Windows DHCP Server Information Disclosure VulnerabilityWindows DHCP Server Important 5.90.8%Information Disclosure
KB5122871KB5122876+4
CVE-2026-72978 Active Directory Federation Services (AD FS) Denial of Service VulnerabilityActive Directory Federation Services (AD FS) Important 5.91.0%Denial of Service
KB5122871KB5122876+4
CVE-2026-78523 Windows DNS Server Denial of Service VulnerabilityWindows DNS Important 5.91.0%Denial of Service
KB5122871KB5122876+4
CVE-2026-69559 Microsoft Teams for Android Information Disclosure VulnerabilityMicrosoft Teams for Android Important 5.80.3%Information Disclosure Revised 15 Sep
—
CVE-2026-68874 Windows Program Compatibility Assistant Service Information Disclosure VulnerabilityWindows Program Compatibility Assistant Service Important 5.70.9%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69317 Windows Remote Desktop Client Information Disclosure VulnerabilityRemote Desktop Client Important 5.70.9%Information Disclosure
KB5122871KB5122876+8

CISA KEV · Microsoft additions

389 Microsoft CVEs listed
CVE-2026-65660 SharePoint
Microsoft SharePoint Code Injection Vulnerability
Added 25 Sep 2026Federal due date 28 Sep
CVE-2026-85880 Windows
Microsoft Windows Heap-Based Buffer Overflow Vulnerability
Added 8 Sep 2026Federal due date 22 Sep
CVE-2026-81963 Windows
Microsoft Windows Link Following Vulnerability
Added 8 Sep 2026Federal due date 22 Sep
CVE-2019-1068 SQL Server
Microsoft SQL Server Remote Code Execution Vulnerability
Added 26 Aug 2026Federal due date 29 Aug
CVE-2026-55040 SharePoint
Microsoft SharePoint Weak Authentication Vulnerability
Added 18 Aug 2026Federal due date 21 Aug
CVE-2026-33824 Internet Key Exchange (IKE) Service Extensions
Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability
Added 18 Aug 2026Federal due date 21 Aug
CVE-2026-68820 Windows Ancillary Function Driver for WinSock
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
Added 11 Aug 2026Federal due date 25 Aug
CVE-2026-50522 SharePoint
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
Added 22 Jul 2026Federal due date 25 Jul
CVE-2026-58644 SharePoint
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
Added 16 Jul 2026Federal due date 19 Jul
CVE-2026-56164 SharePoint Server
Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability
Added 14 Jul 2026Federal due date 17 Jul
CVE-2026-56155 Active Directory Federation Services
Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Added 14 Jul 2026Federal due date 28 Jul
CVE-2026-45659 SharePoint ServerRansomware
Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability
Added 1 Jul 2026Federal due date 4 Jul

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