Known vulnerabilities in Microsoft Windows Server 2025
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-34341 | Double free in Windows Link-Layer Discovery Protocol (LLDP) allows an authorized attacker to elevate privileges locally | 7.0 High | May 12, 2026 |
| CVE-2026-34339 | Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny… | 5.5 Medium | May 12, 2026 |
| CVE-2026-34337 | 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-2026-34338 | Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-34336 | Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-34334 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… | 7.8 High | May 12, 2026 |
| CVE-2026-34332 | Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network | 8.0 High | May 12, 2026 |
| CVE-2026-33838 | Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-33837 | Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-33835 | 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-2026-42896 | Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-42825 | Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally | 7.0 High | May 12, 2026 |
| CVE-2026-32170 | Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally | 6.7 Medium | May 12, 2026 |
| CVE-2026-32161 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Native WiFi… | 7.5 High | May 12, 2026 |
| CVE-2026-41096 | Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network | 9.8 Critical | May 12, 2026 |
| CVE-2026-41095 | Use after free in Data Deduplication allows an authorized attacker to elevate privileges locally | 7.8 High | May 12, 2026 |
| CVE-2026-41089 | Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network | 9.8 Critical | May 12, 2026 |
| CVE-2026-41088 | Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an… | 7.8 High | May 12, 2026 |
| CVE-2026-40415 | 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-2026-40405 | Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network | 7.5 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