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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

177 matches · most urgent first CSV Text
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-81400 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure Revised 17 Sep
KB5002904KB5002914
CVE-2026-81401 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure Revised 17 Sep
KB5002904KB5002910+1
CVE-2026-81958 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure Revised 17 Sep
KB5002904KB5002914
CVE-2026-83949 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 5.50.5%Information Disclosure
KB5002923
CVE-2026-83951 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 5.50.5%Information Disclosure
KB5002923
CVE-2026-85875 Microsoft Office Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure Revised 17 Sep
KB5002904KB5002914
CVE-2026-81380 GitHub Copilot and Visual Studio Code Information Disclosure VulnerabilityGitHub Copilot and Visual Studio Code Important 5.30.6%Information Disclosure
—
CVE-2026-72976 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 5.00.5%Information Disclosure Revised 17 Sep
KB5002923
CVE-2026-69474 Windows Overlay Filter Information Disclosure VulnerabilityWindows Overlay Filter Important 4.80.7%Information Disclosure
KB5122871KB5122876+7
CVE-2026-68849 Windows Bluetooth Port Driver Information Disclosure VulnerabilityWindows Bluetooth Port Driver Important 4.70.3%Information Disclosure
KB5122871KB5122878+4
CVE-2026-68891 Microsoft Standard XPS Information Disclosure VulnerabilityMicrosoft Standard XPS Important 4.70.3%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69316 Windows Overlay Filter Information Disclosure VulnerabilityWindows Overlay Filter Important 4.70.3%Information Disclosure
KB5122871KB5122876+6
CVE-2026-69483 Windows Image Acquisition Information Disclosure VulnerabilityWindows Image Acquisition Important 4.70.3%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69853 Win32k Information Disclosure VulnerabilityWindows Win32K Important 4.70.3%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69895 Windows Spaceport.sys Information Disclosure VulnerabilityWindows Spaceport.sys Important 4.70.3%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69381 Windows Storage Port Driver Information Disclosure VulnerabilityWindows Storage Port Driver Important 4.60.5%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69548 Windows RNDIS Information Disclosure VulnerabilityWindows RNDIS Important 4.60.5%Information Disclosure
KB5122871KB5122876+8
CVE-2026-78452 Microsoft Windows SCSI Class System File Information Disclosure VulnerabilityMicrosoft Windows SCSI Class System File Important 4.60.5%Information Disclosure
KB5122871KB5122876+5
CVE-2026-78508 Windows CD-ROM Driver Information Disclosure VulnerabilityWindows CD-ROM Driver Important 4.60.5%Information Disclosure
KB5122871KB5122876+8
CVE-2026-78455 Xbox Information Disclosure VulnerabilityXbox Important 4.30.5%Information Disclosure
KB5122876KB5122878+4
CVE-2026-78516 Windows Storage Information Disclosure VulnerabilityWindows Storage Important 4.30.5%Information Disclosure
KB5122871KB5122876+8
CVE-2026-69904 Microsoft Office SharePoint Information Disclosure VulnerabilityMicrosoft Office SharePoint Important 3.50.6%Information Disclosure
KB5002908
CVE-2026-68791 Azure Machine Learning Information Disclosure VulnerabilityAzure Machine Learning Critical 8.60.5%Information Disclosure
Service-side fix
CVE-2026-85887 M365 Copilot Information Disclosure VulnerabilityM365 Copilot Critical 7.70.9%Information Disclosure
Service-side fix
CVE-2026-62906 Microsoft Discovery Studio Information Disclosure VulnerabilityMicrosoft Discovery Studio Critical 7.40.9%Information Disclosure
Service-side fix
CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure VulnerabilityMicrosoft 365 Copilot's Business Chat Critical 7.40.9%Information Disclosure
Service-side fix
CVE-2026-55946 Microsoft Copilot Information Disclosure VulnerabilityMicrosoft Copilot Critical 6.10.4%Information Disclosure
Service-side fix

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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