Known vulnerabilities in Microsoft Windows 11 version 26H1
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| 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-2026-54132 | Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical… | 6.8 Medium | 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 |
| CVE-2026-54987 | Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-54989 | Use after free in Quality Windows Audio/Video Experience (QWAVE) service allows an authorized attacker to elevate… | 7.0 High | Jul 14, 2026 |
| CVE-2026-50695 | Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over… | 7.5 High | Jul 14, 2026 |
| CVE-2026-54129 | Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally | 7.0 High | Jul 14, 2026 |
| CVE-2026-54983 | Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny… | 7.5 High | Jul 14, 2026 |
| CVE-2026-49784 | Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App… | 7.0 High | Jul 14, 2026 |
| CVE-2026-49177 | Out-of-bounds read in Windows TCP/IP allows an authorized attacker to disclose information locally | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-49173 | Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-49174 | Missing authentication for critical function in Microsoft Windows DNS allows an authorized attacker to perform tampering… | 6.1 Medium | Jul 14, 2026 |
| CVE-2026-49172 | Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network | 9.8 Critical | Jul 14, 2026 |
| CVE-2026-49175 | Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-49171 | Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally | 7.5 High | Jul 14, 2026 |
| CVE-2026-49176 | Improper privilege management in Windows WalletService allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-49170 | Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate… | 7.8 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