Microsoft Windows Server 2022 23h2 vulnerabilities

• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Secure Boot Security Feature Bypass Vulnerability CVE-2026-41097 6.7 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Denial of Service Vulnerability CVE-2026-40413 7.4 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Graphics Component Remote Code Execution Vulnerability CVE-2026-40403 8.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Denial of Service Vulnerability CVE-2026-40401 7.1 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Remote Desktop Services Elevation of Privilege Vulnerability CVE-2026-40398 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Common Log File System Driver Elevation of Privilege Vulnerability CVE-2026-40397 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Filtering Platform (WFP) Security Feature Bypass Vulnerability CVE-2026-32209 4.4 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Telephony Service Elevation of Privilege Vulnerability CVE-2026-40382 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Link-Layer Discovery Protocol (LLDP) Elevation of Privilege Vulnerability CVE-2026-34341 7.0 HighMay 12, 2026
• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Windows Projected File System Elevation of Privilege Vulnerability CVE-2026-34340 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +22 more +24 more Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability CVE-2026-34339 5.5 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Telephony Service Elevation of Privilege Vulnerability CVE-2026-34338 7.8 HighMay 12, 2026
• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability CVE-2026-34337 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +22 more +24 more Windows DWM Core Library Elevation of Privilege Vulnerability CVE-2026-34336 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Elevation of Privilege Vulnerability CVE-2026-34334 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Message Queuing (MSMQ) Elevation of Privilege Vulnerability CVE-2026-33838 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Local Elevation of Privilege Vulnerability CVE-2026-33837 7.8 HighMay 12, 2026
• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability CVE-2026-33835 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Telephony Service Elevation of Privilege Vulnerability CVE-2026-42825 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Rich Text Edit Elevation of Privilege Vulnerability CVE-2026-32170 6.7 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Native WiFi Miniport Driver Remote Code Execution Vulnerability CVE-2026-32161 7.5 HighMay 12, 2026
• microsoft windows 11 version 23h2, windows 11 version 24h2, windows 11 version 25h2 +9 more +11 more Windows DNS Client Remote Code Execution Vulnerability CVE-2026-41096 Public exploit 9.8 CriticalMay 12, 2026
• microsoft windows server 2012 r2, windows server 2012 r2 (server core installation), windows server 2016 +9 more +11 more Data Deduplication Elevation of Privilege Vulnerability CVE-2026-41095 7.8 HighMay 12, 2026
• microsoft windows server 2012, windows server 2012 (server core installation), windows server 2012 r2 +10 more +12 more Windows Netlogon Remote Code Execution Vulnerability CVE-2026-41089 Public exploit EPSS 78.3% 9.8 CriticalMay 12, 2026
• microsoft windows 10 version 21h2, windows 10 version 22h2, windows 11 version 23h2 +14 more +16 more Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability CVE-2026-41088 7.8 HighMay 12, 2026
• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Windows TCP/IP Remote Code Execution Vulnerability CVE-2026-40415 8.1 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Denial of Service Vulnerability CVE-2026-40414 7.4 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +25 more +27 more Windows SMB Client Elevation of Privilege Vulnerability CVE-2026-40410 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows WAN ARP Driver Elevation of Privilege Vulnerability CVE-2026-40408 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Common Log File System Driver Elevation of Privilege Vulnerability CVE-2026-40407 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Information Disclosure Vulnerability CVE-2026-40406 7.5 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +22 more +24 more Windows TCP/IP Elevation of Privilege Vulnerability CVE-2026-40399 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Volume Manager Extension Driver Remote Code Execution Vulnerability CVE-2026-40380 6.2 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Microsoft Cryptographic Services Elevation of Privilege Vulnerability CVE-2026-40377 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability CVE-2026-35424 7.5 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows 11 Telnet Client Information Disclosure Vulnerability CVE-2026-35423 5.4 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Driver Security Feature Bypass Vulnerability CVE-2026-35422 6.5 MediumMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows GDI Remote Code Execution Vulnerability CVE-2026-35421 7.8 HighMay 12, 2026
• microsoft windows server 2012, windows server 2012 (server core installation), windows server 2012 r2 +10 more +12 more Windows Kernel Elevation of Privilege Vulnerability CVE-2026-35420 7.8 HighMay 12, 2026
• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability CVE-2026-35418 7.8 HighMay 12, 2026
• microsoft windows 10 version 1809, windows 10 version 21h2, windows 10 version 22h2 +18 more +20 more Windows Win32k Elevation of Privilege Vulnerability CVE-2026-35417 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability CVE-2026-35416 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +25 more +27 more Windows Storage Spaces Controller Elevation of Privilege Vulnerability CVE-2026-35415 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows TCP/IP Elevation of Privilege Vulnerability CVE-2026-34351 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Win32k Elevation of Privilege Vulnerability CVE-2026-34347 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +22 more +24 more Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability CVE-2026-34345 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability CVE-2026-34344 Public exploit 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Application Identity (AppID) Subsystem Elevation of Privilege Vulnerability CVE-2026-34343 7.8 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Print Spooler Elevation of Privilege Vulnerability CVE-2026-34342 7.0 HighMay 12, 2026
• microsoft windows 10 version 1607, windows 10 version 1809, windows 10 version 21h2 +26 more +28 more Windows Win32k Elevation of Privilege Vulnerability CVE-2026-34333 7.8 HighMay 12, 2026
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