Known vulnerabilities in Microsoft Windows 11 Version 25H2
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-83874 | Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-83845 | Improper privilege management in Windows Internet (wininet.dll) allows an authorized attacker to perform spoofing… | 8.4 High | Oct 13, 2026 |
| CVE-2026-83840 | Weak authentication in Windows Error Reporting allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83841 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows… | 7.0 High | Oct 13, 2026 |
| CVE-2026-83797 | Out-of-bounds read in Windows Partition Management Driver allows an unauthorized attacker to execute code over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-83835 | Buffer over-read in Windows Common Log File System Driver allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83829 | Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83830 | Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83794 | Out-of-bounds read in Windows Portable Device MTP Driver allows an authorized attacker to disclose information locally | 5.5 Medium | Oct 13, 2026 |
| CVE-2026-83795 | Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service over a network | 7.5 High | Oct 13, 2026 |
| CVE-2026-83777 | Heap-based buffer overflow in Windows Bluetooth Service allows an unauthorized attacker to elevate privileges over an… | 8.8 High | Oct 13, 2026 |
| CVE-2026-83788 | Buffer over-read in Windows RNDIS allows an unauthorized attacker to disclose information with a physical attack | 4.6 Medium | Oct 13, 2026 |
| CVE-2026-83789 | Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network | 8.8 High | Oct 13, 2026 |
| CVE-2026-83781 | Improper null termination in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83790 | Use after free in Windows Hello allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83791 | Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83792 | Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83783 | Heap-based buffer overflow in Windows Management Instrumentation allows an authorized attacker to elevate privileges… | 7.8 High | Oct 13, 2026 |
| CVE-2026-83785 | Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally | 7.0 High | Oct 13, 2026 |
| CVE-2026-83786 | Generation of error message containing sensitive information in Windows NTFS allows an authorized attacker to disclose… | 4.7 Medium | Oct 13, 2026 |
| CVE-2026-83766 | Incorrect authorization in Windows Hyper-V allows an authorized attacker to bypass a security feature over an adjacent… | 4.2 Medium | Oct 13, 2026 |
| CVE-2026-83757 | Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83767 | Stack-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally | 7.8 High | Oct 13, 2026 |
| CVE-2026-83778 | Heap-based buffer overflow in Microsoft Internet Messaging API allows an unauthorized attacker to execute code over a… | 8.8 High | Oct 13, 2026 |
| CVE-2026-83770 | Heap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network | 9.8 Critical | 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