Microsoft Windows Server 2008 R2 Service Pack 1

• CVE-2021-43226 High 7.8 Exploited Windows Common Log File System Driver Elevation of Privilege Vulnerability 3.3%
• CVE-2021-42287 High 7.5 Exploited Active Directory Domain Services Elevation of Privilege Vulnerability 77.2%
• CVE-2021-42278 High 7.5 Exploited Active Directory Domain Services Elevation of Privilege Vulnerability 73.3%
• CVE-2021-41379 Medium 5.5 Exploited Windows Installer Elevation of Privilege Vulnerability 19.5%
• CVE-2021-40449 High 7.8 Exploited Win32k Elevation of Privilege Vulnerability 81.9%
• CVE-2021-40444 High 8.8 Exploited Microsoft MSHTML Remote Code Execution Vulnerability 97.8%
• CVE-2021-36955 High 7.8 Exploited Windows Common Log File System Driver Elevation of Privilege Vulnerability 4.1%
• CVE-2021-36942 High 7.5 Exploited Windows LSA Spoofing Vulnerability 66.0%
• CVE-2021-34484 High 7.8 Exploited Windows User Profile Service Elevation of Privilege Vulnerability 21.8%
• CVE-2021-34448 Medium 6.8 Exploited Scripting Engine Memory Corruption Vulnerability 40.1%
• CVE-2021-31979 High 7.8 Exploited Windows Kernel Elevation of Privilege Vulnerability 4.5%
• CVE-2021-34527 High 8.8 Exploited Windows Print Spooler Remote Code Execution Vulnerability 99.8%
• CVE-2021-33742 High 7.5 Exploited Windows MSHTML Platform Remote Code Execution Vulnerability 59.4%
• CVE-2021-31956 High 7.8 Exploited Windows NTFS Elevation of Privilege Vulnerability 22.3%
• CVE-2021-31201 Medium 5.2 Exploited Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability 2.6%
• CVE-2021-31199 Medium 5.2 Exploited Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability 3.0%
• CVE-2021-1675 High 7.8 Exploited Windows Print Spooler Remote Code Execution Vulnerability 85.3%
• CVE-2020-17087 High 7.8 Exploited Windows Kernel Local Elevation of Privilege Vulnerability 5.4%
• CVE-2020-1472 Medium 5.5 Exploited Netlogon Elevation of Privilege Vulnerability 99.4%
• CVE-2020-1464 High 7.8 Exploited Windows Spoofing Vulnerability 38.9%
• CVE-2020-1054 High 7.0 Exploited Win32k Elevation of Privilege Vulnerability 53.9%
• CVE-2013-3900 Medium 5.5 Exploited WinVerifyTrust Signature Validation Vulnerability 44.6%
• 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-2026-20929 High 7.5 Windows HTTP.sys Elevation of Privilege Vulnerability 2.9%
• CVE-2026-20872 Medium 6.5 NTLM Hash Disclosure Spoofing Vulnerability 19.8%
• CVE-2026-20868 High 8.8 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability 1.4%
• CVE-2026-20849 High 7.5 Windows Kerberos Elevation of Privilege Vulnerability 1.0%
• CVE-2026-20843 High 7.8 Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability 3.4%
• CVE-2026-20940 High 7.8 Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability 0.5%
• CVE-2026-20927 Medium 5.3 Windows SMB Server Denial of Service Vulnerability 0.9%
• CVE-2026-20925 Medium 6.5 NTLM Hash Disclosure Spoofing Vulnerability 17.9%
• 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-2026-20875 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-2026-20860 High 7.8 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability 8.3%
• CVE-2026-20847 Medium 6.5 Microsoft Windows File Explorer Spoofing Vulnerability 1.3%
• CVE-2026-20840 High 7.8 Windows NTFS Remote Code Execution Vulnerability 4.6%
• CVE-2026-20839 Medium 5.5 Windows Client-Side Caching (CSC) Service Information Disclosure Vulnerability 0.5%
• CVE-2026-20834 Medium 4.6 Windows Spoofing Vulnerability 0.7%
• CVE-2026-20833 Medium 5.5 Windows Kerberos Information Disclosure Vulnerability 0.5%
• CVE-2026-20831 High 7.8 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability 0.3%
• CVE-2026-20828 Medium 4.6 Windows rndismp6.sys Information Disclosure Vulnerability 0.6%
• CVE-2026-20821 Medium 6.2 Remote Procedure Call Information Disclosure Vulnerability 0.7%
• CVE-2026-20820 High 7.8 Windows Common Log File System Driver Elevation of Privilege Vulnerability 2.6%
• CVE-2026-20816 High 7.8 Windows Installer Elevation of Privilege Vulnerability 2.4%
• CVE-2026-0386 High 7.5 Windows Deployment Services Remote Code Execution Vulnerability 0.5%
• CVE-2025-54100 High 7.8 PowerShell Remote Code Execution Vulnerability 2.2%
• CVE-2025-64678 High 8.8 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability 1.0%