Microsoft Windows 10 21H2 vulnerabilities

CVE-2026-42916 [HIGH] CWE-190 CVE-2026-42916: Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate priv Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-83756 [HIGH] CWE-416 CVE-2026-83756: 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-2026-41088 [HIGH] CWE-73 CVE-2026-41088: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2025-59191 [HIGH] CWE-122 CVE-2025-59191: Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attac Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privileges locally.

CVE-2026-34344 [HIGH] CWE-843 CVE-2026-34344: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-85795 [HIGH] CWE-416 CVE-2026-85795: Use after free in Windows Text Services Framework allows an authorized attacker to elevate privilege Use after free in Windows Text Services Framework allows an authorized attacker to elevate privileges locally.

CVE-2026-85375 [HIGH] CWE-416 CVE-2026-85375: Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker t Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

CVE-2026-85820 [HIGH] CWE-122 CVE-2026-85820: 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-2026-96244 [HIGH] CWE-416 CVE-2026-96244: Use after free in Windows Internal System User Profile allows an authorized attacker to elevate priv Use after free in Windows Internal System User Profile allows an authorized attacker to elevate privileges locally.

CVE-2026-84016 [HIGH] CWE-787 CVE-2026-84016: Out-of-bounds write in Windows EAPHost Service allows an authorized attacker to elevate privileges l Out-of-bounds write in Windows EAPHost Service allows an authorized attacker to elevate privileges locally.

CVE-2026-85332 [HIGH] CWE-416 CVE-2026-85332: Use after free in Windows Device Association Service allows an authorized attacker to elevate privil Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-96325 [HIGH] CWE-771 CVE-2026-96325: Missing reference to active allocated resource in Windows SMB Server allows an unauthorized attacker Missing reference to active allocated resource in Windows SMB Server allows an unauthorized attacker to deny service over a network.

CVE-2026-34330 [HIGH] CWE-190 CVE-2026-34330: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-88105 [HIGH] CWE-416 CVE-2026-88105: Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privil Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

CVE-2026-97807 [HIGH] CWE-416 CVE-2026-97807: Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privil Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

CVE-2026-97809 [HIGH] CWE-416 CVE-2026-97809: Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privil Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

CVE-2026-41092 [HIGH] CWE-284 CVE-2026-41092: Improper access control in Microsoft Kinect allows an authorized attacker to elevate privileges loca Improper access control in Microsoft Kinect allows an authorized attacker to elevate privileges locally.

CVE-2026-96220 [HIGH] CWE-94 CVE-2026-96220: Improper control of generation of code ('code injection') in Windows Assigned Access allows an autho Improper control of generation of code ('code injection') in Windows Assigned Access allows an authorized attacker to elevate privileges locally.

CVE-2026-49171 [HIGH] CWE-416 CVE-2026-49171: Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges local Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2026-73014 [HIGH] CWE-862 CVE-2026-73014: Missing authorization in Data Sharing Service Client allows an authorized attacker to elevate privil Missing authorization in Data Sharing Service Client allows an authorized attacker to elevate privileges locally.