Known vulnerabilities in Microsoft Windows 11 version 26H1
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-68898 | Out-of-bounds read in Windows iSCSI allows an unauthorized attacker to deny service over a network | 6.5 Medium | Sep 8, 2026 |
| CVE-2026-68885 | Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally | 7.8 High | Sep 8, 2026 |
| CVE-2026-68873 | Insertion of sensitive information into log file in Windows Program Compatibility Assistant Service allows an authorized… | 5.5 Medium | Sep 8, 2026 |
| CVE-2026-69265 | Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally | 7.8 High | Sep 8, 2026 |
| CVE-2026-68852 | Use of uninitialized resource in Microsoft Account allows an authorized attacker to disclose information locally | 5.5 Medium | Sep 8, 2026 |
| CVE-2026-68874 | Out-of-bounds read in Windows Program Compatibility Assistant Service allows an authorized attacker to disclose… | 5.7 Medium | Sep 8, 2026 |
| CVE-2026-68876 | Heap-based buffer overflow in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate… | 8.0 High | Sep 8, 2026 |
| CVE-2026-68880 | Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network | 8.0 High | Sep 8, 2026 |
| CVE-2026-68848 | Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges… | 7.8 High | Sep 8, 2026 |
| CVE-2026-68842 | Exposure of sensitive system information to an unauthorized control sphere in Windows MIDI Service Module allows an… | 5.5 Medium | Sep 8, 2026 |
| CVE-2026-68839 | Heap-based buffer overflow in Windows USB Mass Storage Class Driver allows an unauthorized attacker to execute code over… | 9.8 Critical | Sep 8, 2026 |
| CVE-2026-68840 | Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Driver allows… | 7.0 High | Sep 8, 2026 |
| CVE-2026-68838 | Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network | 8.0 High | Sep 8, 2026 |
| CVE-2026-68834 | Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network | 8.0 High | Sep 8, 2026 |
| CVE-2026-68843 | Use after free in Microsoft Office Word allows an authorized attacker to disclose information locally | 5.5 Medium | Sep 8, 2026 |
| CVE-2026-68827 | Integer underflow (wrap or wraparound) in Windows GDI+ allows an authorized attacker to elevate privileges over a… | 8.0 High | Sep 8, 2026 |
| CVE-2026-68831 | Files or directories accessible to external parties in Windows Defender Firewall Service allows an authorized attacker… | 5.5 Medium | Sep 8, 2026 |
| CVE-2026-68828 | Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network | 8.8 High | Sep 8, 2026 |
| CVE-2026-62697 | Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges locally | 7.8 High | Sep 8, 2026 |
| CVE-2026-56172 | Use after free in Windows VHD miniport driver allows an authorized attacker to elevate privileges locally | 7.8 High | Sep 8, 2026 |
| CVE-2026-62813 | Use after free in Active Directory Domain Services allows an authorized attacker to execute code over a network | 7.5 High | Sep 8, 2026 |
| CVE-2026-62759 | Authentication bypass by spoofing in Windows Netlogon allows an unauthorized attacker to perform spoofing over an… | 7.5 High | Sep 8, 2026 |
| CVE-2026-62762 | Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a… | 6.5 Medium | Sep 8, 2026 |
| CVE-2026-62810 | Heap-based buffer overflow in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate… | 7.8 High | Sep 8, 2026 |
| CVE-2026-56198 | Out-of-bounds read in Microsoft Trace Data Helper allows an authorized attacker to elevate privileges locally | 7.8 High | Sep 8, 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