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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

260 matches · most urgent first CSV Text
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-78519 Microsoft Office Outlook Remote Code Execution VulnerabilityMicrosoft Office Outlook Critical 8.80.8%Remote Code Execution
KB5002919
CVE-2026-78525 Microsoft Office Outlook Remote Code Execution VulnerabilityMicrosoft Office Outlook Critical 8.80.8%Remote Code Execution Revised 17 Sep
KB5002923
CVE-2026-80083 Windows Hyper-V Remote Code Execution VulnerabilityWindows Hyper-V Critical 8.80.3%Remote Code Execution
KB5122871KB5122880+3
CVE-2026-81352 Web Media Extensions Remote Code Execution VulnerabilityMicrosoft Windows Codecs Library Critical 8.80.5%Remote Code Execution
—
CVE-2026-81952 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Critical 8.80.8%Remote Code Execution Revised 17 Sep
KB5002916
CVE-2026-81955 Windows Graphics Component Remote Code Execution VulnerabilityMicrosoft Graphics Component Critical 8.80.8%Remote Code Execution Revised 17 Sep
KB5002916KB5122871+9
CVE-2026-78510 Microsoft Outlook and Word Remote Code Execution VulnerabilityMicrosoft Office Critical 8.40.3%Remote Code Execution Revised 25 Sep
KB5002916
CVE-2026-69530 Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityReliable Multicast Transport Driver (RMCAST) Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+1
CVE-2026-69813 Windows DNS Server Remote Code Execution VulnerabilityWindows DNS Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-69827 Windows DNS Server Remote Code Execution VulnerabilityRole: DNS Server Critical 8.10.5%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-69858 Windows DNS Server Remote Code Execution VulnerabilityWindows DNS Critical 8.10.7%Remote Code Execution
KB5122871KB5122882
CVE-2026-72981 IP Helper Remote Code Execution VulnerabilityIP Helper Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-72987 Windows DNS Remote Code Execution VulnerabilityWindows DNS Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-77505 Windows DNS Server Remote Code Execution VulnerabilityRole: DNS Server Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-78444 Microsoft Failover Cluster Remote Code Execution VulnerabilityWindows Failover Cluster Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+1
CVE-2026-78449 Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityReliable Multicast Transport Driver (RMCAST) Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-78450 Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution VulnerabilityReliable Multicast Transport Driver (RMCAST) Critical 8.10.7%Remote Code Execution
KB5122871KB5122876+1
CVE-2026-58599 HEVC Video Extensions Remote Code Execution VulnerabilityMicrosoft Windows Codecs Library Critical 7.80.5%Remote Code Execution
—
CVE-2026-72957 Windows Deployment Services Remote Code Execution VulnerabilityWindows Deployment Services Critical 7.80.3%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-81948 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81949 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81950 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81951 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 24 Sep
KB5002904KB5002914
CVE-2026-81953 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81959 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-69852 Windows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityWindows Routing and Remote Access Service (RRAS) Critical 7.50.7%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-72954 Windows Deployment Services Remote Code Execution VulnerabilityWindows Deployment Services Critical 7.50.7%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-73017 Graphics Kernel Remote Code Execution VulnerabilityWindows Graphics Kernel Critical 7.50.3%Remote Code Execution
KB5122871KB5122876+5
CVE-2026-77898 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.50.6%Remote Code Execution Revised 17 Sep
—
CVE-2026-81355 Virtual Hard Disk (VHD) Miniport Driver Remote Code Execution VulnerabilityVirtual Hard Disk (VHD) Miniport Driver Critical 7.50.2%Remote Code Execution Revised 15 Sep
KB5122871KB5122876+8
CVE-2026-70585 Windows Services for NFS ONCRPC XDR Driver Remote Code Execution VulnerabilityWindows Services for NFS ONCRPC XDR Driver Critical 7.00.3%Remote Code Execution
KB5122871KB5122876+4
CVE-2026-78520 Microsoft Office Outlook Information Disclosure VulnerabilityMicrosoft Office Outlook Critical 6.50.9%Remote Code Execution Revised 17 Sep
KB5002923
CVE-2026-68839 Windows USB Mass Storage Class Driver Remote Code Execution VulnerabilityWindows USB Mass Storage Class Driver Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69276 Microsoft UxTheme Library (uxtheme.dll) Remote Code Execution VulnerabilityMicrosoft UxTheme Library (uxtheme.dll) Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69408 Microsoft Windows Media Foundation Remote Code Execution VulnerabilityMicrosoft Windows Media Foundation Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69431 Telnet Client Remote Code Execution VulnerabilityTelnet Client Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69463 Windows NTFS Remote Code Execution VulnerabilityWindows NTFS Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69491 Microsoft DirectMusic Remote Code Execution VulnerabilityWindows Microsoft DirectMusic Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69493 Windows Event Logging Service Remote Code Execution VulnerabilityWindows Event Logging Service Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69496 Windows Compressed Folder Remote Code Execution VulnerabilityWindows Compressed Folder Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69525 Remote Desktop Services Remote Code Execution VulnerabilityWindows Remote Desktop Services Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69586 Microsoft Windows PDF Remote Code Execution VulnerabilityMicrosoft Windows PDF Important 9.81.0%Remote Code Execution
KB5122871KB5122876+6
CVE-2026-69715 Windows Direct Show Remote Code Execution VulnerabilityWindows Direct Show Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69768 Windows RNDIS Remote Code Execution VulnerabilityWindows RNDIS Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69819 RPC Runtime Library Remote Code Execution VulnerabilityRPC Runtime Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69824 Microsoft Standard XPS Remote Code Execution VulnerabilityMicrosoft Standard XPS Important 9.81.0%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-69910 Windows Hyper-V Remote Code Execution VulnerabilityWindows Hyper-V Important 9.81.0%Remote Code Execution
KB5122871KB5122876+6
CVE-2026-62706 Microsoft Windows Media Foundation Remote Code Execution VulnerabilityMicrosoft Windows Media Foundation Important 8.80.8%Remote Code Execution
KB5122871KB5122876+8
CVE-2026-62744 Microsoft Windows Media Foundation Remote Code Execution VulnerabilityMicrosoft Windows Media Foundation Important 8.80.8%Remote Code Execution
KB5122871KB5124008+1
CVE-2026-67373 Microsoft SQL Server Remote Code Execution VulnerabilitySQL Server Important 8.80.9%Remote Code Execution
KB5122769KB5122770

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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