Microsoft Windows Server 2025 (Server Core installation)

• CVE-2026-21251 High 7.8 Cluster Client Failover (CCF) Elevation of Privilege Vulnerability 0.4%
• CVE-2026-21253 High 7.0 Mailslot File System Elevation of Privilege Vulnerability 0.8%
• CVE-2026-21255 High 8.8 Windows Hyper-V Security Feature Bypass Vulnerability 0.4%
• CVE-2026-21508 High 7.0 Windows Storage Elevation of Privilege Vulnerability 0.4%
• CVE-2026-21236 High 7.8 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability 0.4%
• CVE-2026-21234 High 7.0 Windows Connected Devices Platform Service Elevation of Privilege Vulnerability 0.3%
• CVE-2026-21242 High 7.0 Windows Subsystem for Linux Elevation of Privilege Vulnerability 0.4%
• CVE-2026-21246 High 7.8 Windows Graphics Component Elevation of Privilege Vulnerability 0.4%
• CVE-2026-21247 High 7.3 Windows Hyper-V Remote Code Execution Vulnerability 0.6%
• CVE-2026-21248 High 7.3 Windows Hyper-V Remote Code Execution Vulnerability 1.3%
• CVE-2026-20941 High 7.8 Host Process for Windows Tasks Elevation of Privilege Vulnerability 0.5%
• CVE-2026-20939 Medium 5.5 Windows File Explorer Information Disclosure Vulnerability 0.5%
• CVE-2026-20937 Medium 5.5 Windows File Explorer Information Disclosure Vulnerability 0.5%
• CVE-2026-20936 Medium 4.3 Windows NDIS Information Disclosure Vulnerability 0.5%
• CVE-2026-20931 High 8.0 Windows Telephony Service Elevation of Privilege Vulnerability 0.8%
• CVE-2026-20874 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20873 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20872 Medium 6.5 NTLM Hash Disclosure Spoofing Vulnerability 19.8%
• CVE-2026-20871 High 7.8 Desktop Window Manager Elevation of Privilege Vulnerability 4.1%
• CVE-2026-20870 High 7.8 Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability 0.5%
• CVE-2026-20868 High 8.8 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability 1.4%
• CVE-2026-20867 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20866 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20863 High 7.0 Win32k Elevation of Privilege Vulnerability 0.4%
• CVE-2026-20862 Medium 5.5 Windows Management Services Information Disclosure Vulnerability 0.6%
• CVE-2026-20861 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20854 High 7.5 Windows Local Security Authority Subsystem Service (LSASS) Remote Code Execution Vulnerability 1.1%
• CVE-2026-20849 High 7.5 Windows Kerberos Elevation of Privilege Vulnerability 1.0%
• CVE-2026-20848 High 7.5 Windows SMB Server Elevation of Privilege Vulnerability 0.7%
• CVE-2026-20843 High 7.8 Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability 3.4%
• CVE-2026-21221 High 7.0 Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability 0.2%
• CVE-2026-20830 High 7.0 Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20934 High 7.5 Windows SMB Server Elevation of Privilege Vulnerability 0.7%
• CVE-2026-20932 Medium 5.5 Windows File Explorer Information Disclosure Vulnerability 0.7%
• CVE-2026-20927 Medium 5.3 Windows SMB Server Denial of Service Vulnerability 0.9%
• CVE-2026-20926 High 7.5 Windows SMB Server Elevation of Privilege Vulnerability 0.8%
• CVE-2026-20925 Medium 6.5 NTLM Hash Disclosure Spoofing Vulnerability 17.9%
• CVE-2026-20924 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20923 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.4%
• CVE-2026-20922 High 7.8 Windows NTFS Remote Code Execution Vulnerability 1.1%
• CVE-2026-20921 High 7.5 Windows SMB Server Elevation of Privilege Vulnerability 1.2%
• CVE-2026-20919 High 7.5 Windows SMB Server Elevation of Privilege Vulnerability 0.8%
• CVE-2026-20918 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20877 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20876 Medium 6.7 Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability 0.5%
• CVE-2026-20875 High 7.5 Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability 1.5%
• CVE-2026-20869 High 7.0 Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20865 High 7.8 Windows Management Services Elevation of Privilege Vulnerability 0.4%
• CVE-2026-20864 High 7.8 Windows Connected Devices Platform Service Elevation of Privilege Vulnerability 0.6%
• CVE-2026-20860 High 7.8 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability 8.3%