Known vulnerabilities in Microsoft Windows Server 2025 (Server Core installation)
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-34346 | Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized… | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-34349 | Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose… | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-42982 | Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate… | 7.8 High | Jul 14, 2026 |
| CVE-2026-42993 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 7.5 High | Jun 9, 2026 |
| CVE-2026-44812 | Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-44803 | Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-42987 | Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network | 8.1 High | Jun 9, 2026 |
| CVE-2026-44801 | Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 7.5 High | Jun 9, 2026 |
| CVE-2026-42985 | Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 8.8 High | Jun 9, 2026 |
| CVE-2026-42983 | Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-44802 | Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-44815 | Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network | 9.8 Critical | Jun 9, 2026 |
| CVE-2026-44799 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 7.5 High | Jun 9, 2026 |
| CVE-2026-42992 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 7.5 High | Jun 9, 2026 |
| CVE-2026-44805 | Use after free in Windows Network Controller (NC) Host Agent allows an authorized attacker to deny service locally | 5.5 Medium | Jun 9, 2026 |
| CVE-2026-44810 | Improper authentication in Windows Cryptographic Services allows an unauthorized attacker to elevate privileges locally | 8.4 High | Jun 9, 2026 |
| CVE-2026-42989 | Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate… | 7.8 High | Jun 9, 2026 |
| CVE-2026-44809 | Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-42991 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push… | 7.8 High | Jun 9, 2026 |
| CVE-2026-42979 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push… | 7.8 High | Jun 9, 2026 |
| CVE-2026-42977 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push… | 7.8 High | Jun 9, 2026 |
| CVE-2026-42978 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push… | 7.8 High | Jun 9, 2026 |
| CVE-2026-42986 | Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-42981 | Integer underflow (wrap or wraparound) in Windows Performance Monitor allows an unauthorized attacker to execute code… | 8.1 High | Jun 9, 2026 |
| CVE-2026-42974 | Integer overflow or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a… | 8.1 High | Jun 9, 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