Skip to content

Known vulnerabilities in Microsoft Windows 11 Version 23H2

Is your version affected?

CVE Summary Score Published
CVE-2026-85375 Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges… 7.8 High Oct 13, 2026
CVE-2026-85376 Weak authentication in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-85377 Access of resource using incompatible type ('type confusion') in Windows CD-ROM Driver allows an authorized attacker… 7.8 High Oct 13, 2026
CVE-2026-85369 Out-of-bounds read in Windows Hyper-V allows an authorized attacker to elevate privileges locally 8.2 High Oct 13, 2026
CVE-2026-85790 Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network 5.9 Medium Oct 13, 2026
CVE-2026-85370 Use after free in WebDAV allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85791 Heap-based buffer overflow in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges… 7.0 High Oct 13, 2026
CVE-2026-85792 Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access… 9.8 Critical Oct 13, 2026
CVE-2026-85361 Use after free in Windows Installer allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85362 Release of invalid pointer or reference in Windows Management Instrumentation allows an authorized attacker to elevate… 7.0 High Oct 13, 2026
CVE-2026-85364 Use after free in Windows Installer allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85354 Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85365 Heap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85355 Inclusion of functionality from untrusted control sphere in Windows Common Log File System Driver allows an authorized… 7.0 High Oct 13, 2026
CVE-2026-85366 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-85356 Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges… 7.8 High Oct 13, 2026
CVE-2026-85367 Use after free in Windows Cash Drawer Protocol Provider allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85357 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Phone Service… 7.0 High Oct 13, 2026
CVE-2026-85368 Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-85358 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-85359 Improper control of generation of code ('code injection') in Windows Performance Monitor allows an authorized attacker… 7.8 High Oct 13, 2026
CVE-2026-85342 Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally 7.0 High Oct 13, 2026
CVE-2026-85332 Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-85343 Improper link resolution before file access ('link following') in Windows Hyper-V allows an authorized attacker to… 7.8 High Oct 13, 2026
CVE-2026-85333 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Performance… 6.7 Medium Oct 13, 2026

Other Microsoft products