Skip to content

Known vulnerabilities in Microsoft Windows 11 Version 23H2

Is your version affected?

CVE Summary Score Published
CVE-2026-69276 Integer underflow (wrap or wraparound) in Microsoft UxTheme Library (uxtheme.dll) allows an unauthorized attacker to… 9.8 Critical Sep 8, 2026
CVE-2026-69281 Use after free in Windows License Manager allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-68892 Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally 7.8 High Sep 8, 2026
CVE-2026-68890 Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally 7.8 High Sep 8, 2026
CVE-2026-69271 Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network 8.0 High Sep 8, 2026
CVE-2026-68881 Out-of-bounds read in Microsoft Standard XPS allows an authorized attacker to disclose information locally 5.5 Medium Sep 8, 2026
CVE-2026-68884 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-68878 Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate privileges over a… 8.0 High Sep 8, 2026
CVE-2026-68897 Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-68875 Buffer over-read in Windows NTFS allows an authorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-68851 Buffer over-read in Windows NTFS allows an authorized attacker to disclose information locally 5.5 Medium Sep 8, 2026
CVE-2026-68845 Heap-based buffer overflow in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate… 7.8 High Sep 8, 2026
CVE-2026-68846 Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network 7.1 High Sep 8, 2026
CVE-2026-68847 Use after free in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges… 7.0 High Sep 8, 2026
CVE-2026-68849 Out-of-bounds read in Windows Bluetooth Port Driver allows an authorized attacker to disclose information locally 4.7 Medium Sep 8, 2026
CVE-2026-68835 Use after free in Windows Print Spooler Components allows an authorized attacker to elevate privileges over a network 7.1 High Sep 8, 2026
CVE-2026-68841 Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally 7.8 High Sep 8, 2026
CVE-2026-68832 Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally 7.8 High Sep 8, 2026
CVE-2026-68833 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack 6.8 Medium Sep 8, 2026
CVE-2026-68824 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected User… 7.0 High Sep 8, 2026
CVE-2026-68830 Improper link resolution before file access ('link following') in Windows Universal Plug and Play (UPnP) Device Host… 5.5 Medium Sep 8, 2026
CVE-2026-50349 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary… 7.0 High Sep 8, 2026
CVE-2026-62801 Improper limitation of a pathname to a restricted directory ('path traversal') in Windows PowerShell allows an… 6.5 Medium Sep 8, 2026
CVE-2026-85360 Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-69341 Use after free in Windows Image Acquisition allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026

Other Microsoft products