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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

117 matches · most urgent first CSV Text
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
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
CVE-2026-58291 Microsoft Edge (Chromium-based) Information Disclosure VulnerabilityMicrosoft Edge (Chromium-based) Important 6.11.0%Information Disclosure
—
CVE-2026-33842 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099414KB5099444+7
CVE-2026-34328 Windows Audio Service Information Disclosure VulnerabilityWindows Audio Service Important 5.50.5%Information Disclosure
KB5099414KB5099536+5
CVE-2026-34346 Windows Ancillary Function Driver for WinSock Information Disclosure VulnerabilityWindows Ancillary Function Driver for WinSock Important 5.50.3%Information Disclosure
KB5099414KB5099444+8
CVE-2026-34349 Windows Media Information Disclosure VulnerabilityWindows Media Important 5.50.5%Information Disclosure
KB5099536KB5099538+4
CVE-2026-40422 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.4%Information Disclosure
KB5099535KB5099536+5
CVE-2026-41087 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-48580 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure
KB5002884KB5002886
CVE-2026-49177 Windows TCP/IP Information Disclosure VulnerabilityWindows TCP/IP Important 5.50.4%Information Disclosure Revised 31 Aug
KB5099444KB5099445+7
CVE-2026-49180 Universal Plug and Play (upnp.dll) Information Disclosure VulnerabilityUniversal Plug and Play (upnp.dll) Important 5.50.4%Information Disclosure
KB5099444KB5099445+7
CVE-2026-49801 Windows SMB Information Disclosure VulnerabilityWindows SMB Important 5.50.4%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50300 Windows DWM Core Library Information Disclosure VulnerabilityWindows Kernel Important 5.50.4%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50316 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 5.50.5%Information Disclosure
KB5099536KB5099539+3
CVE-2026-50334 Windows Push Notification Information Disclosure VulnerabilityWindows Notification Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50339 Windows Push Notification Information Disclosure VulnerabilityWindows Push Notifications Important 5.50.5%Information Disclosure
KB5099536KB5099538+4
CVE-2026-50341 Windows NTFS Information Disclosure VulnerabilityWindows NTFS Important 5.50.4%Information Disclosure Revised 3 Aug
KB5099444KB5099445+7
CVE-2026-50350 Windows Trusted Runtime Interface Driver Information Disclosure VulnerabilityWindows Trusted Runtime Interface Driver Important 5.50.5%Information Disclosure
KB5099536KB5099539+2
CVE-2026-50352 Windows Cryptographic Services Information Disclosure VulnerabilityWindows Cryptographic Services Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50381 Composite Image File System driver (cimfs.sys) Information Disclosure VulnerabilityComposite Image File System Driver Important 5.50.4%Information Disclosure
KB5099536KB5099539+3
CVE-2026-50389 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50394 Windows Media Information Disclosure VulnerabilityWindows Media Important 5.50.5%Information Disclosure
KB5099444KB5099535+6
CVE-2026-50401 Windows Cloud Files Mini Filter Driver Information Disclosure VulnerabilityWindows Cloud Files Mini Filter Driver Important 5.50.4%Information Disclosure
KB5099536KB5099538+4
CVE-2026-50408 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure
KB5002884KB5002886
CVE-2026-50409 Windows Overlay Filter Information Disclosure VulnerabilityWindows Overlay Filter Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50430 Windows Push Notification Information Disclosure VulnerabilityWindows Push Notifications Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50431 Windows Quality of Service (QoS) Packet Scheduler Information Disclosure VulnerabilityWindows Quality of Service (QoS) Packet Scheduler Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50434 Windows Push Notification Information Disclosure VulnerabilityWindows Push Notifications Important 5.50.5%Information Disclosure
KB5099536KB5099539+3
CVE-2026-50437 Windows DWM Core Library Information Disclosure VulnerabilityWindows DWM Core Library Important 5.50.4%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50442 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50455 Universal Plug and Play (upnp.dll) Information Disclosure VulnerabilityUniversal Plug and Play (upnp.dll) Important 5.50.4%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50456 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50473 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50475 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 5.50.4%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50483 Windows Graphics Component Information Disclosure VulnerabilityMicrosoft Graphics Component Important 5.50.5%Information Disclosure
KB5099536KB5101649+1
CVE-2026-50681 Windows Secure Channel Information Disclosure VulnerabilityWindows Cryptographic Services Important 5.50.5%Information Disclosure
KB5099535KB5099536+5
CVE-2026-50690 Windows SMB Information Disclosure VulnerabilityWindows SMB Important 5.50.4%Information Disclosure
KB5099444KB5099445+7
CVE-2026-54997 Windows SMB Information Disclosure VulnerabilityWindows SMB Important 5.50.4%Information Disclosure
KB5099444KB5099445+7
CVE-2026-55023 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
KB5002882KB5002883+4
CVE-2026-55027 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
KB5002882KB5002883+4
CVE-2026-55028 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
KB5002882KB5002883+4
CVE-2026-55035 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
KB5002882KB5002883+4
CVE-2026-55042 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure
KB5002887
CVE-2026-55046 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%Information Disclosure
KB5002884KB5002886
CVE-2026-55047 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
KB5002882KB5002883+4
CVE-2026-55050 Microsoft Word Information Disclosure VulnerabilityMicrosoft Office Word Important 5.50.6%Information Disclosure Revised 6 Aug
KB5002882KB5002883+4
CVE-2026-55057 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure
KB5002887
CVE-2026-55121 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure Revised 17 Sep
KB5002882KB5002883+4
CVE-2026-55138 Microsoft Excel Information Disclosure VulnerabilityMicrosoft Office Excel Important 5.50.5%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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