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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

260 matches · most urgent first CSV Text
Fixed by KB5099535Clear
CVE Vulnerability Severity CVSSEPSSImpact StatusFixed by
CVE-2026-50366 Windows Active Directory Domain Services Denial of Service VulnerabilityActive Directory Domain Services Important 6.51.1%Denial of Service
KB5099444KB5099445+7
CVE-2026-50376 Windows Remote Desktop Client Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure Revised 4 Sep
KB5099444KB5099445+7
CVE-2026-50445 Windows Remote Desktop Protocol (RDP) Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50497 Windows Remote Desktop Protocol (RDP) Information Disclosure VulnerabilityWindows Remote Desktop Protocol Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50504 Windows Remote Desktop Client Information Disclosure VulnerabilityRemote Desktop Client Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50659 .NET Spoofing Vulnerability.NET Important 6.50.7%Spoofing Revised 7 Aug
KB5099535KB5100984+20
CVE-2026-54126 Windows Remote Desktop Protocol (RDP) Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099445KB5099535+6
CVE-2026-55003 Windows Remote Desktop Protocol (RDP) Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-57976 Windows Active Directory Domain Services Denial of Service VulnerabilityActive Directory Domain Services Important 6.51.1%Denial of Service
KB5099444KB5099445+7
CVE-2026-57979 Windows Remote Desktop Protocol (RDP) Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099535+6
CVE-2026-57982 Windows Remote Desktop Protocol (RDP) Information Disclosure VulnerabilityWindows RDP Important 6.51.0%Information Disclosure
KB5099444KB5099445+7
CVE-2026-58533 Windows Remote Desktop Client Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-58535 Windows Remote Desktop Client Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-58539 Windows Remote Desktop Client Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-58546 Windows Remote Desktop Client Information Disclosure VulnerabilityWindows RDP Important 6.50.9%Information Disclosure
KB5099444KB5099445+7
CVE-2026-57097 Microsoft XML Security Feature Bypass VulnerabilityMicrosoft XML Important 6.40.5%Security Feature Bypass
KB5099444KB5099445+7
CVE-2026-50294 Windows Kernel Information Disclosure VulnerabilityWindows Kernel Important 6.20.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-57095 Win32k Elevation of Privilege VulnerabilityWindows Win32K Important 6.20.5%Elevation of Privilege
KB5099444KB5099445+7
CVE-2026-50453 Windows USB Audio Class Driver Information Disclosure VulnerabilityWindows USB Audio Class driver (usbaudio.sys) Important 6.10.5%Information Disclosure Revised 8 Sep
KB5099444KB5099445+7
CVE-2026-58638 Windows Boot Loader Security Feature Bypass VulnerabilityWindows Boot Loader Important 6.00.2%Security Feature Bypass
KB5099444KB5099445+7
CVE-2026-50324 Windows Active Directory Federation Services Denial of Service VulnerabilityActive Directory Federation Services (AD FS) Important 5.90.9%Denial of Service Revised 21 Jul
KB5099444KB5099535+18
CVE-2026-56649 Windows Network File System Remote Code Execution VulnerabilityWindows Network File System Important 5.90.7%Remote Code Execution
KB5099444KB5099445+7
CVE-2026-33842 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099414KB5099444+7
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-2026-40422 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-2026-49177 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-2026-50334 Windows Push Notification Information Disclosure VulnerabilityWindows Notification Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50341 Windows NTFS Information Disclosure VulnerabilityWindows NTFS Important 5.50.4%Information Disclosure Revised 3 Aug
KB5099444KB5099445+7
CVE-2026-50352 Windows Cryptographic Services Information Disclosure VulnerabilityWindows Cryptographic Services Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-50377 Windows Kernel Elevation of Privilege VulnerabilityWindows Kernel Important 5.50.4%Elevation of Privilege Revised 22 Jul
KB5099535KB5099536+5
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-2026-50409 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-2026-50437 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-2026-50681 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-2026-57083 Windows Media Photo Codec Information Disclosure VulnerabilityMicrosoft Windows Codecs Library Important 5.50.5%Information Disclosure
KB5099444KB5099445+7
CVE-2026-57084 Windows File Explorer Information Disclosure VulnerabilityWindows File Explorer Important 5.50.5%Information Disclosure
KB5099444KB5099445+7

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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