Microsoft Windows 10 21H2 vulnerabilities

CVE-2026-56176 [HIGH] CWE-125 CVE-2026-56176: Out-of-bounds read in Windows Win32K - GRFX allows an authorized attacker to elevate privileges loca Out-of-bounds read in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-55004 [HIGH] CWE-415 CVE-2026-55004: Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-54115 [HIGH] CWE-122 CVE-2026-54115: Integer overflow or wraparound in Windows Active Directory allows an authorized attacker to elevate Integer overflow or wraparound in Windows Active Directory allows an authorized attacker to elevate privileges locally.

CVE-2026-49783 [HIGH] CWE-358 CVE-2026-49783: Improperly implemented security check for standard in Windows Secure Boot allows an authorized attac Improperly implemented security check for standard in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-50331 [HIGH] CWE-416 CVE-2026-50331: Use after free in Windows Application Model allows an authorized attacker to elevate privileges loca Use after free in Windows Application Model allows an authorized attacker to elevate privileges locally.

CVE-2026-35415 [HIGH] CWE-190 CVE-2026-35415: Integer overflow or wraparound in Windows Storage Spaces Controller allows an authorized attacker to Integer overflow or wraparound in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

CVE-2026-42837 [HIGH] CWE-125 CVE-2026-42837: Out-of-bounds read in Windows Projected File System Filter Driver allows an authorized attacker to e Out-of-bounds read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-42828 [HIGH] CWE-126 CVE-2026-42828: Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to ele Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-49665 [HIGH] CWE-362 CVE-2025-49665: Concurrent execution using shared resource with improper synchronization ('race condition') in Works Concurrent execution using shared resource with improper synchronization ('race condition') in Workspace Broker allows an authorized attacker to elevate privileges locally.

CVE-2026-85338 [HIGH] CWE-125 CVE-2026-85338: Out-of-bounds read in Microsoft Graphics Component allows an authorized attacker to elevate privileg Out-of-bounds read in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-88070 [HIGH] CWE-125 CVE-2026-88070: Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges locally.

CVE-2026-85842 [HIGH] CWE-134 CVE-2026-85842: Use of externally-controlled format string in Windows Image Acquisition allows an authorized attacke Use of externally-controlled format string in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.

CVE-2026-85829 [HIGH] CWE-415 CVE-2026-85829: Double free in Windows Wired AutoConfig Service allows an authorized attacker to elevate privileges Double free in Windows Wired AutoConfig Service allows an authorized attacker to elevate privileges locally.

CVE-2025-49733 [HIGH] CWE-416 CVE-2025-49733: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

CVE-2025-49725 [HIGH] CWE-416 CVE-2025-49725: Use after free in Windows Notification allows an authorized attacker to elevate privileges locally. Use after free in Windows Notification allows an authorized attacker to elevate privileges locally.

CVE-2025-53768 [HIGH] CWE-362 CVE-2025-53768: Use after free in Xbox allows an authorized attacker to elevate privileges locally. Use after free in Xbox allows an authorized attacker to elevate privileges locally.

CVE-2026-96918 [HIGH] CWE-863 CVE-2026-96918: Improper access control in Windows NTFS allows an authorized attacker to elevate privileges locally. Improper access control in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-83837 [HIGH] CWE-441 CVE-2026-83837: Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate priv Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-85796 [HIGH] CWE-121 CVE-2026-85796: Numeric truncation error in Windows Installer allows an authorized attacker to elevate privileges lo Numeric truncation error in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-88194 [HIGH] CWE-125 CVE-2026-88194: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.