Known vulnerabilities in Microsoft Windows Server 2016 (Server Core installation)
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| 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-2026-35415 | 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 |
| 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-2026-33834 | Improper access control in Windows Event Logging Service allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-21530 | Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally | 6.7 Medium | May 12, 2026 |
| CVE-2026-32214 | Improper access control in Universal Plug and Play (upnp.dll) allows an authorized attacker to disclose information… | 5.5 Medium | Apr 14, 2026 |
| CVE-2026-33829 | Exposure of sensitive information to an unauthorized actor in Windows Snipping Tool allows an unauthorized attacker to… | 4.3 Medium | Apr 14, 2026 |
| CVE-2026-33824 | Exploited Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability | 9.8 Critical | Apr 14, 2026 |
| CVE-2026-33827 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… | 8.1 High | Apr 14, 2026 |
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