Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-83857 [HIGH] CWE-121 CVE-2026-83857: Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attac Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-96249 [HIGH] CWE-416 CVE-2026-96249: Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-85911 [HIGH] CWE-416 CVE-2026-85911: Use after free in Windows StateRepository API allows an authorized attacker to elevate privileges lo Use after free in Windows StateRepository API allows an authorized attacker to elevate privileges locally.

CVE-2026-50312 [HIGH] CWE-416 CVE-2026-50312: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-85804 [HIGH] CWE-416 CVE-2026-85804: Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-96243 [HIGH] CWE-59 CVE-2026-96243: Improper link resolution before file access ('link following') in Windows WalletService allows an au Improper link resolution before file access ('link following') in Windows WalletService allows an authorized attacker to elevate privileges locally.

CVE-2026-69407 [HIGH] CWE-190 CVE-2026-69407: Integer overflow or wraparound in Volume Manager Driver allows an authorized attacker to elevate pri Integer overflow or wraparound in Volume Manager Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-69324 [HIGH] CWE-125 CVE-2026-69324: Access of resource using incompatible type ('type confusion') in Windows Performance Monitor allows Access of resource using incompatible type ('type confusion') in Windows Performance Monitor allows an authorized attacker to elevate privileges locally.

CVE-2026-70584 [HIGH] CWE-843 CVE-2026-70584: Access of resource using incompatible type ('type confusion') in Windows Core Messaging allows an au Access of resource using incompatible type ('type confusion') in Windows Core Messaging allows an authorized attacker to elevate privileges locally.

CVE-2026-56177 [HIGH] CWE-416 CVE-2026-56177: Use after free in Windows Server allows an authorized attacker to elevate privileges locally. Use after free in Windows Server allows an authorized attacker to elevate privileges locally.

CVE-2026-61934 [HIGH] CWE-416 CVE-2026-61934: Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges loc Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-62698 [HIGH] CWE-197 CVE-2026-62698: Numeric truncation error in Microsoft Digest Authentication allows an authorized attacker to elevate Numeric truncation error in Microsoft Digest Authentication allows an authorized attacker to elevate privileges locally.

CVE-2026-58602 [HIGH] CWE-416 CVE-2026-58602: Use after free in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges loc Use after free in Windows Kernel Mode Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-50337 [HIGH] CWE-704 CVE-2026-50337: Incorrect type conversion or cast in Windows Notification allows an authorized attacker to elevate p Incorrect type conversion or cast in Windows Notification allows an authorized attacker to elevate privileges locally.

CVE-2026-50486 [HIGH] CWE-416 CVE-2026-50486: Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally. Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.

CVE-2026-50466 [HIGH] CWE-416 CVE-2026-50466: Use after free in Windows Brokering File System allows an authorized attacker to elevate privileges Use after free in Windows Brokering File System allows an authorized attacker to elevate privileges locally.

CVE-2026-49166 [HIGH] CWE-416 CVE-2026-49166: Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges loca Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-58537 [HIGH] CWE-416 CVE-2026-58537: Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to el Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to elevate privileges locally.

CVE-2026-58541 [HIGH] CWE-843 CVE-2026-58541: Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized at Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized attacker to elevate privileges locally.

CVE-2026-50493 [HIGH] CWE-416 CVE-2026-50493: Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locall Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.