Known vulnerabilities in Microsoft Windows 11 version 26H1
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-50357 | Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50377 | Windows Kernel Elevation of Privilege Vulnerability | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-50312 | Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges… | 4.7 Medium | Jul 14, 2026 |
| CVE-2026-50330 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to elevate privileges over a network | 7.5 High | Jul 14, 2026 |
| CVE-2026-50310 | Integer overflow or wraparound in Windows Devices Human Interface allows an authorized attacker to disclose… | 4.7 Medium | Jul 14, 2026 |
| CVE-2026-50430 | Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker… | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-50339 | Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker… | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-50434 | Exposure of sensitive information to an unauthorized actor in Windows Push Notifications allows an authorized attacker… | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-50315 | Null pointer dereference in Windows Image Acquisition allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50425 | Use after free in Windows Internal System User Profile allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50321 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Driver allows… | 7.8 High | Jul 14, 2026 |
| CVE-2026-50347 | Heap-based buffer overflow in Windows Data dll allows an unauthorized attacker to execute code locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50343 | Improper privilege management in Microsoft Install Service allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50396 | Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally | 7.0 High | Jul 14, 2026 |
| CVE-2026-50331 | Use after free in Windows Application Model allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50341 | Buffer over-read in Windows NTFS allows an authorized attacker to disclose information locally | 5.5 Medium | Jul 14, 2026 |
| CVE-2026-50407 | Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges… | 7.8 High | Jul 14, 2026 |
| CVE-2026-50327 | Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50380 | Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network | 9.6 Critical | Jul 14, 2026 |
| CVE-2026-50440 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Audio Service… | 7.8 High | Jul 14, 2026 |
| CVE-2026-50313 | Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50326 | Use after free in Windows Unified Consent System allows an authorized attacker to elevate privileges locally | 7.8 High | Jul 14, 2026 |
| CVE-2026-50307 | Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally | 7.0 High | Jul 14, 2026 |
| CVE-2026-50419 | Exposure of sensitive information to an unauthorized actor in Windows Kernel allows an authorized attacker to disclose… | 3.3 Low | Jul 14, 2026 |
| CVE-2026-50400 | Stack-based buffer overflow in Windows App Installer allows an authorized attacker to elevate privileges locally | 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