Vulnerabilities of Microsoft Windows 11 version 26H1
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-21245 | Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Feb 10, 2026 |
| CVE-2026-21249 | External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing locally | 3.3 Low | Feb 10, 2026 |
| CVE-2026-21250 | Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally | 7.8 High | Feb 10, 2026 |
| CVE-2026-21253 | Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally | 7.0 High | Feb 10, 2026 |
| CVE-2026-21255 | Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally | 8.8 High | Feb 10, 2026 |
| CVE-2026-21508 | Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally | 7.0 High | Feb 10, 2026 |
| CVE-2026-21525 | Exploited Microsoft Windows NULL Pointer Dereference Vulnerability | 6.2 Medium | Feb 10, 2026 |
| CVE-2026-21510 | Exploited Microsoft Windows Shell Protection Mechanism Failure Vulnerability | 8.8 High | Feb 10, 2026 |
| CVE-2026-21513 | Exploited Microsoft Internet Explorer Protection Mechanism Failure Vulnerability | 8.8 High | Feb 10, 2026 |
| CVE-2026-21533 | Exploited Microsoft Windows Improper Privilege Management Vulnerability | 7.8 High | Feb 10, 2026 |
| CVE-2026-21236 | Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate… | 7.8 High | Feb 10, 2026 |
| CVE-2026-21235 | Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally | 7.3 High | Feb 10, 2026 |
| CVE-2026-21234 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices… | 7.0 High | Feb 10, 2026 |
| CVE-2026-21242 | Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally | 7.0 High | Feb 10, 2026 |
| CVE-2026-21247 | Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally | 7.3 High | Feb 10, 2026 |
| CVE-2026-21248 | Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally | 7.3 High | Feb 10, 2026 |
| CVE-2026-21519 | Exploited Microsoft Windows Type Confusion Vulnerability | 7.8 High | Feb 10, 2026 |
| CVE-2025-21330 | Windows Remote Desktop Services Denial of Service Vulnerability | 7.5 High | Jan 14, 2025 |
| CVE-2024-49075 | Windows Remote Desktop Services Denial of Service Vulnerability | 7.5 High | Dec 10, 2024 |
| CVE-2024-49132 | Windows Remote Desktop Services Remote Code Execution Vulnerability | 8.1 High | Dec 10, 2024 |
| CVE-2024-49123 | Windows Remote Desktop Services Remote Code Execution Vulnerability | 8.1 High | Dec 10, 2024 |
| CVE-2024-43582 | Remote Desktop Protocol Server Remote Code Execution Vulnerability | 8.1 High | Oct 8, 2024 |
| CVE-2020-17103 | Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability | 7.0 High | Dec 9, 2020 |
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