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Vulnerabilities of Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

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CVE Summary Score Published
CVE-2026-40415 Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network 8.1 High May 12, 2026
CVE-2026-40414 Windows TCP/IP Denial of Service Vulnerability 7.4 High May 12, 2026
CVE-2026-40408 Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally 7.8 High May 12, 2026
CVE-2026-40410 Use after free in Windows SMB Client allows an authorized attacker to elevate privileges locally 7.0 High May 12, 2026
CVE-2026-40406 Use after free in Windows TCP/IP allows an unauthorized attacker to disclose information over a network 7.5 High May 12, 2026
CVE-2026-40407 Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate… 7.8 High May 12, 2026
CVE-2026-40399 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… 7.8 High May 12, 2026
CVE-2026-40380 Heap-based buffer overflow in Volume Manager Extension Driver allows an authorized attacker to execute code with a… 6.2 Medium May 12, 2026
CVE-2026-40377 Heap-based buffer overflow in Windows Cryptographic Services allows an authorized attacker to elevate privileges locally 7.8 High May 12, 2026
CVE-2026-35423 Out-of-bounds read in Telnet Client allows an unauthorized attacker to disclose information over a network 5.4 Medium May 12, 2026
CVE-2026-35424 Missing release of memory after effective lifetime in Windows Internet Key Exchange (IKE) Protocol allows an… 7.5 High May 12, 2026
CVE-2026-35421 Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code locally 7.8 High May 12, 2026
CVE-2026-35422 Authentication bypass using an alternate path or channel in Windows TCP/IP allows an authorized attacker to bypass a… 6.5 Medium May 12, 2026
CVE-2026-35420 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally 7.8 High May 12, 2026
CVE-2026-35418 Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally 7.8 High May 12, 2026
CVE-2026-35417 Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally 7.8 High May 12, 2026
CVE-2026-35415 Integer overflow or wraparound in Windows Storage Spaces Controller allows an authorized attacker to elevate… 7.8 High May 12, 2026
CVE-2026-35416 Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… 7.0 High May 12, 2026
CVE-2026-34351 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… 7.8 High May 12, 2026
CVE-2026-34347 Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally 7.0 High May 12, 2026
CVE-2026-34345 Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… 7.0 High May 12, 2026
CVE-2026-34344 Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… 7.8 High May 12, 2026
CVE-2026-34342 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Print Spooler… 7.0 High May 12, 2026
CVE-2026-34343 Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized attacker to elevate… 7.8 High May 12, 2026
CVE-2026-34333 Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally 7.8 High May 12, 2026

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