Known vulnerabilities in Microsoft Windows 11 Version 26H2
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-83779 | Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83759 | Improper control of generation of code ('code injection') in Windows Encrypting File System (EFS) allows an authorized… | 8.8 High | Oct 13, 2026 |
| CVE-2026-83760 | Out-of-bounds read in Microsoft Bluetooth Driver allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83761 | Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83753 | Heap-based buffer overflow in Windows Camera Frame Server Monitor allows an authorized attacker to elevate privileges… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83754 | Heap-based buffer overflow in OpenSSH for Windows allows an unauthorized attacker to execute code over a network | 7.5 High | Oct 13, 2026 |
| CVE-2026-83775 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83776 | Out-of-bounds read in Microsoft Bluetooth Driver allows an unauthorized attacker to elevate privileges with a physical… | 6.8 Medium | Oct 13, 2026 |
| CVE-2026-83719 | Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83712 | Out-of-bounds write in Windows NTFS allows an authorized attacker to execute code locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83722 | Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83733 | Out-of-bounds read in Windows Print Spooler Components allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83713 | Out-of-bounds read in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83723 | Use of uninitialized resource in Windows Event Logging Service allows an authorized attacker to disclose information… | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83748 | Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network | 9.8 Critical | Oct 13, 2026 |
| CVE-2026-83715 | Missing authentication for critical function in Windows Error Reporting allows an authorized attacker to perform… | 7.1 High | Oct 13, 2026 |
| CVE-2026-83749 | Use after free in Windows Overlay Filter allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83726 | Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83738 | Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83727 | Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83740 | Use after free in Windows Hello allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83690 | Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83707 | Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83691 | Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83708 | Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 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