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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

139 matches · most urgent first CSV Text
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-78517 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.8%Remote Code Execution Revised 21 Sep
KB5002923
CVE-2026-78518 Microsoft Office Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 8.80.9%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-78521 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.8%Remote Code Execution Revised 17 Sep
KB5002923
CVE-2026-78524 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 8.80.8%Remote Code Execution Revised 21 Sep
KB5002916
CVE-2026-78526 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.8%Remote Code Execution Revised 21 Sep
KB5002898
CVE-2026-80080 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.8%Remote Code Execution Revised 17 Sep
KB5002923
CVE-2026-80081 Microsoft Office PowerPoint Remote Code Execution VulnerabilityMicrosoft Office PowerPoint Important 8.80.8%Remote Code Execution
—
CVE-2026-80085 Microsoft Office Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 8.80.8%Remote Code Execution Revised 17 Sep
KB5002923
CVE-2026-81385 Microsoft Office Publisher Remote Code Execution VulnerabilityMicrosoft Office Publisher Important 8.81.3%Remote Code Execution
KB5002644
CVE-2026-69646 Skype for Business Spoofing VulnerabilitySkype for Business Important 8.30.3%Spoofing
KB5123287KB5123300+1
CVE-2026-62804 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 7.80.6%Remote Code Execution
KB5002923
CVE-2026-81386 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81388 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81396 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81397 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81398 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81947 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002910+1
CVE-2026-81954 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81956 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002910+1
CVE-2026-81957 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-81960 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-66304 Skype for Business Information Disclosure VulnerabilitySkype for Business Important 7.51.0%Information Disclosure
KB5123287KB5123300+1
CVE-2026-66307 Skype for Business and Lync Denial of Service VulnerabilitySkype for Business Important 7.51.2%Denial of Service
KB5123287KB5123300+1
CVE-2026-69804 Microsoft Office SharePoint Remote Code Execution VulnerabilityMicrosoft Office SharePoint Important 7.50.5%Remote Code Execution
KB5002908
CVE-2026-69402 Microsoft Office SharePoint Spoofing VulnerabilityMicrosoft Office SharePoint Important 7.30.4%Spoofing
KB5002908
CVE-2026-69417 Microsoft Office SharePoint Spoofing VulnerabilityMicrosoft Office SharePoint Important 7.30.4%Spoofing
KB5002908
CVE-2026-69477 Microsoft Office Access Remote Code Execution VulnerabilityMicrosoft Office Access Important 7.30.4%Remote Code Execution
KB5002912
CVE-2026-66305 Skype for Business Spoofing VulnerabilitySkype for Business Important 7.10.5%Spoofing
KB5123287KB5123300+1
CVE-2026-81389 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.00.4%Remote Code Execution Revised 17 Sep
KB5002904KB5002914
CVE-2026-65812 Microsoft Teams for Android Information Disclosure VulnerabilityMicrosoft Teams for Android Important 6.80.9%Information Disclosure Revised 15 Sep
—
CVE-2026-63523 Skype for Business Spoofing VulnerabilitySkype for Business Important 6.50.6%Spoofing
KB5123287KB5123300+1
CVE-2026-64918 Microsoft Office Spoofing VulnerabilityMicrosoft Office Important 6.50.9%Spoofing
KB5002916
CVE-2026-66303 Skype for Business and Lync Denial of Service VulnerabilitySkype for Business Important 6.51.1%Denial of Service
KB5123287KB5123300+1
CVE-2026-66306 Skype for Business Information Disclosure VulnerabilitySkype for Business Important 6.50.9%Information Disclosure
KB5123287KB5123300+1
CVE-2026-66308 Skype for Business and Lync Denial of Service VulnerabilitySkype for Business Important 6.51.1%Denial of Service
KB5123287KB5123300+1
CVE-2026-69409 Microsoft Office SharePoint Information Disclosure VulnerabilityMicrosoft Office SharePoint Important 6.51.0%Information Disclosure Revised 24 Sep
KB5002908
CVE-2026-69626 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-69636 Microsoft Office SharePoint Information Disclosure VulnerabilityMicrosoft Office SharePoint Important 6.51.0%Information Disclosure Revised 24 Sep
KB5002908
CVE-2026-69642 Skype for Business Spoofing VulnerabilitySkype for Business Important 6.50.4%Spoofing
KB5123287KB5123300+1
CVE-2026-69683 Microsoft Office SharePoint Information Disclosure VulnerabilityMicrosoft Office SharePoint Important 6.50.8%Information Disclosure
KB5002908
CVE-2026-69719 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002923
CVE-2026-69734 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-69739 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002916
CVE-2026-72938 Microsoft Office PowerPoint Information Disclosure VulnerabilityMicrosoft Office PowerPoint Important 6.50.9%Information Disclosure Revised 17 Sep
—
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-2026-77911 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure
KB5002923
CVE-2026-78502 Microsoft Office Word Information Disclosure VulnerabilityMicrosoft Office Word Important 6.50.9%Information Disclosure Revised 17 Sep
KB5002923

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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