Known vulnerabilities in Microsoft Windows 11 version 26H1
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-42913 | Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client… | 7.5 High | Jun 9, 2026 |
| CVE-2026-42911 | Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges… | 7.0 High | Jun 9, 2026 |
| CVE-2026-42916 | Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-42909 | Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client… | 7.5 High | Jun 9, 2026 |
| CVE-2026-42980 | Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges… | 7.8 High | Jun 9, 2026 |
| CVE-2026-42908 | Out-of-bounds read in Windows RDP allows an unauthorized attacker to disclose information over a network | 7.5 High | Jun 9, 2026 |
| CVE-2026-42907 | Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose… | 6.5 Medium | Jun 9, 2026 |
| CVE-2026-42906 | Exposure of sensitive information to an unauthorized actor in Windows Shell allows an authorized attacker to disclose… | 5.5 Medium | Jun 9, 2026 |
| CVE-2026-42905 | Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-42904 | Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent… | 9.6 Critical | Jun 9, 2026 |
| CVE-2026-42903 | Null pointer dereference in Windows Kerberos allows an authorized attacker to deny service over a network | 6.5 Medium | Jun 9, 2026 |
| CVE-2026-42836 | Concurrent execution using shared resource with improper synchronization ('race condition') in Function Discovery… | 7.0 High | Jun 9, 2026 |
| CVE-2026-42837 | Out-of-bounds read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges… | 7.8 High | Jun 9, 2026 |
| CVE-2026-50507 | Missing authentication for critical function in Windows BitLocker allows an unauthorized attacker to bypass a security… | 6.8 Medium | Jun 9, 2026 |
| CVE-2026-48574 | Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-49160 | Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network | 7.5 High | Jun 9, 2026 |
| CVE-2026-47656 | Protection mechanism failure in Windows Boot Manager allows an authorized attacker to bypass a security feature locally | 7.9 High | Jun 9, 2026 |
| CVE-2026-42910 | Out-of-bounds write in Windows Hotpatch Monitoring Service allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-45658 | Improper access control in Windows BitLocker allows an authorized attacker to bypass a security feature locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-45653 | Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.0 High | Jun 9, 2026 |
| CVE-2026-45654 | Improper access control in Windows Secure Boot allows an authorized attacker to bypass a security feature locally | 7.9 High | Jun 9, 2026 |
| CVE-2026-45608 | Out-of-bounds read in Windows DHCP Client allows an unauthorized attacker to disclose information locally | 6.8 Medium | Jun 9, 2026 |
| CVE-2026-45637 | Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Jun 9, 2026 |
| CVE-2026-45603 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary… | 7.0 High | Jun 9, 2026 |
| CVE-2026-45638 | Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate… | 7.8 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