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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

CVEs · all collected releases

58 matches · most urgent first CSV Text
Fixed by KB5002884Clear
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-68794 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 17 Sep
KB5002884KB5002903
CVE-2026-68804 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution Revised 24 Sep
KB5002884KB5002903
CVE-2026-68816 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Critical 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-65807 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 8.80.8%Remote Code Execution
KB5002884KB5002903
CVE-2026-47642 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884
CVE-2026-50675 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-54131 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884
CVE-2026-55024 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55025 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55029 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55031 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55036 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55037 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55039 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 21 Sep
KB5002884KB5002886
CVE-2026-55041 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55044 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55048 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55053 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 15 Sep
KB5002884KB5002886
CVE-2026-55058 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55131 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55136 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55137 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 25 Aug
KB5002884KB5002886
CVE-2026-55141 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55899 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55947 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55948 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55949 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-58618 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-68793 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68795 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68796 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68800 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68801 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 21 Aug
KB5002884KB5002903
CVE-2026-68803 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68805 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68806 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68807 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68810 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68811 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68812 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 15 Sep
KB5002884KB5002903
CVE-2026-68814 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002903
CVE-2026-68815 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 12 Aug
KB5002884KB5002903
CVE-2026-68817 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution Revised 27 Aug
KB5002884KB5002903
CVE-2026-55122 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 7.10.5%Information Disclosure
KB5002884KB5002886
CVE-2026-50678 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.60.5%Information Disclosure
KB5002884KB5002886
CVE-2026-55054 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.50.9%Information Disclosure
KB5002884KB5002886
CVE-2026-70327 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.50.9%Information Disclosure
KB5002884KB5002903
CVE-2026-70328 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.50.9%Information Disclosure
KB5002884KB5002903
CVE-2026-54988 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.10.5%Information Disclosure
KB5002884KB5002886
CVE-2026-55898 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 6.10.5%Information Disclosure
KB5002884KB5002886

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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