Known vulnerabilities in Microsoft Windows Server 2025 (Server Core installation)
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| 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-2026-35419 | Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally | 5.5 Medium | 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-2026-34350 | Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a… | 6.5 Medium | 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 |
| CVE-2026-34330 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.8 High | May 12, 2026 |
| CVE-2026-34331 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.0 High | May 12, 2026 |
| CVE-2026-34329 | Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent… | 8.8 High | May 12, 2026 |
| CVE-2026-33841 | Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-33840 | Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-33839 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX… | 7.0 High | May 12, 2026 |
Other Microsoft products
Windows Server 2019 5745
Windows Server 2019 (Server Core installation) 5648
Windows 10 Version 1809 5349
Windows Server 2022 5112
Windows Server 2016 5051
Windows Server 2016 (Server Core installation) 4847
Windows 10 Version 21H2 4539
Windows 10 Version 1607 4535
Windows Server 2012 R2 4103
Windows 10 Version 22H2 4041
Windows Server 2012 R2 (Server Core installation) 3958
Windows Server 2012 3865