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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
663Microsoft CVEsreleased Tue 14 Jul 77Critical56 need an update · rest fixed service-side 3Exploited in the wild
1Publicly disclosed
5In CISA KEV
100Revised since release

Act first · July 2026

Exploited, KEV-listed, or publicly disclosed
Remote Code Execution · CVSS 9.8 KB5002873KB5002874KB5002880
Security Feature Bypass · CVSS 9.1 KB5002882KB5002883KB5002891
Remote Code Execution · CVSS 9.8 KB5002882KB5002883KB5002891
Elevation of Privilege · CVSS 7.8 KB5099444KB5099445KB5099535+3
Elevation of Privilege · CVSS 5.3 KB5002882KB5002883KB5002891
Security Feature Bypass · CVSS 6.1 KB5099535KB5099536KB5099538+4
Patch next · critical, "exploitation more likely", or top 5% EPSS · needs an update85
Remote Code Execution · CVSS 9.8 · EPSS 1.5% No KB listed
Remote Code Execution · CVSS 9.8 · EPSS 1.0% KB5099444KB5099445KB5099535+3
Spoofing · CVSS 9.6 · EPSS 0.9% KB5103212KB5103213KB5103214+1
Remote Code Execution · CVSS 9.8 · EPSS 0.6% KB5099444KB5099445KB5099535+6
Remote Code Execution · CVSS 8.8 · EPSS 0.5% KB5099444KB5099445KB5099535+3
Remote Code Execution · CVSS 7.8 · EPSS 0.5% KB5099535KB5099536KB5099538+4
Remote Code Execution · CVSS 8.4 · EPSS 0.4% KB5099444KB5099445KB5099535+6
Remote Code Execution · CVSS 8.4 · EPSS 0.3% KB5099444KB5099445KB5099535+6
Showing 8 of 85All critical

CVEs · July 2026

100 matches · most urgent first CSV Text
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-58644 Microsoft SharePoint Remote Code Execution VulnerabilityMicrosoft Office SharePoint Critical 9.816%Remote Code Execution ExploitedCISA KEV · due 19 JulRevised 15 Jul
KB5002873KB5002874+1
CVE-2026-55040 Microsoft SharePoint Server Security Feature Bypass VulnerabilityMicrosoft Office SharePoint Critical 9.118%Security Feature Bypass CISA KEV · due 21 Aug
KB5002882KB5002883+1
CVE-2026-50522 Microsoft SharePoint Remote Code Execution VulnerabilityMicrosoft Office SharePoint Critical 9.83.0%Remote Code Execution CISA KEV · due 25 Jul
KB5002882KB5002883+1
CVE-2026-56164 Microsoft SharePoint Server Elevation of Privilege VulnerabilityMicrosoft Office SharePoint Moderate 5.31.0%Elevation of Privilege ExploitedCISA KEV · due 17 Jul
KB5002882KB5002883+1
CVE-2026-55045 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 8.40.4%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-50314 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002887
CVE-2026-50467 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002887
CVE-2026-55018 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002887
CVE-2026-55022 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002887
CVE-2026-55033 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Critical 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55043 Microsoft PowerPoint Remote Code Execution VulnerabilityMicrosoft Office PowerPoint Critical 7.80.5%Remote Code Execution
KB5002867
CVE-2026-55049 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002748
CVE-2026-55056 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002887
CVE-2026-55120 Microsoft PowerPoint Remote Code Execution VulnerabilityMicrosoft Office PowerPoint Critical 7.80.5%Remote Code Execution
KB5002867
CVE-2026-55123 Microsoft PowerPoint Remote Code Execution VulnerabilityMicrosoft Office PowerPoint Critical 7.80.5%Remote Code Execution Revised 21 Sep
KB5002867
CVE-2026-55127 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Critical 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55129 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution Revised 30 Jul
KB5002887
CVE-2026-55132 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Critical 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55140 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
KB5002748KB5002830
CVE-2026-55052 Microsoft SharePoint Elevation of Privilege VulnerabilityMicrosoft Office SharePoint Important 8.80.9%Elevation of Privilege
KB5002882KB5002883+1
CVE-2026-58277 Microsoft SharePoint Elevation of Privilege VulnerabilityMicrosoft Office SharePoint Important 8.80.9%Elevation of Privilege
KB5002883KB5002891
CVE-2026-62870 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 8.80.8%Remote Code Execution
KB5002886
CVE-2026-47290 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 7.80.5%Remote Code Execution
KB5002273
CVE-2026-47642 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884
CVE-2026-50301 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 7.80.5%Remote Code Execution
KB5002887
CVE-2026-50387 Windows GDI Elevation of Privilege VulnerabilityWindows GDI Important 7.80.3%Elevation of Privilege Revised 13 Aug
KB5099444KB5099445+7
CVE-2026-50665 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 7.80.5%Information Disclosure
KB5002887
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-2026-55017 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 7.80.5%Remote Code Execution
KB5002273
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-2026-55032 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 7.80.6%Remote Code Execution
KB5002882KB5002883+4
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-2026-55038 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 7.80.6%Remote Code Execution
KB5002882KB5002883+4
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-2026-55055 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55058 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55125 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55128 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55130 Microsoft Word Remote Code Execution VulnerabilityMicrosoft Office Word Important 7.80.6%Remote Code Execution
KB5002882KB5002883+4
CVE-2026-55131 Microsoft Excel Remote Code Execution VulnerabilityMicrosoft Office Excel Important 7.80.5%Remote Code Execution
KB5002884KB5002886
CVE-2026-55133 Microsoft OneNote Remote Code Execution VulnerabilityMicrosoft Office OneNote Important 7.80.5%Remote Code Execution
—

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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