Known vulnerabilities in Microsoft Windows Server 2025 (Server Core installation)
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-56155 | Exploited Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability | 7.8 High | Jul 14, 2026 |
| CVE-2026-55144 | Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering locally | 7.1 High | Jul 14, 2026 |
| CVE-2026-54122 | Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally | 8.4 High | Jul 14, 2026 |
| CVE-2026-55003 | Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network | 6.5 Medium | Jul 14, 2026 |
| CVE-2026-54995 | Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a… | 8.1 High | Jul 14, 2026 |
| CVE-2026-54997 | Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-54999 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows… | 8.8 High | Jul 14, 2026 |
| CVE-2026-54119 | Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to… | 7.5 High | Jul 14, 2026 |
| CVE-2026-54996 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print… | 7.0 High | Jul 14, 2026 |
| CVE-2026-54114 | Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-54982 | Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker… | 8.8 High | Jul 14, 2026 |
| CVE-2026-54109 | Integer overflow or wraparound in Windows Resilient File System (ReFS) allows an authorized attacker to execute code… | 7.8 High | Jul 14, 2026 |
| CVE-2026-54992 | Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code… | 8.4 High | Jul 14, 2026 |
| CVE-2026-55004 | Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-55001 | Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-54112 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows… | 7.8 High | Jul 14, 2026 |
| CVE-2026-54986 | Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-54993 | Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-54107 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows… | 8.8 High | Jul 14, 2026 |
| CVE-2026-54991 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print… | 7.8 High | Jul 14, 2026 |
| CVE-2026-55000 | Use after free in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack | 6.4 Medium | Jul 14, 2026 |
| CVE-2026-54111 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print… | 7.0 High | Jul 14, 2026 |
| CVE-2026-50697 | Exposure of sensitive information to an unauthorized actor in Windows Common Log File System Driver allows an authorized… | 7.8 High | Jul 14, 2026 |
| CVE-2026-54990 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 9.8 Critical | Jul 14, 2026 |
| CVE-2026-50696 | Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny… | 7.5 High | Jul 14, 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