Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-62880 [HIGH] CWE-125 CVE-2026-62880: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-62696 [HIGH] CWE-191 CVE-2026-62696: Integer underflow (wrap or wraparound) in Windows Program Compatibility Assistant Service allows an Integer underflow (wrap or wraparound) in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62741 [HIGH] CWE-122 CVE-2026-62741: Integer underflow (wrap or wraparound) in Windows HTTP.sys allows an authorized attacker to elevate Integer underflow (wrap or wraparound) in Windows HTTP.sys 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-2026-83918 [HIGH] CWE-190 CVE-2026-83918: Integer overflow or wraparound in Windows Kernel allows an authorized attacker to elevate privileges Integer overflow or wraparound in Windows Kernel 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-2026-97830 [HIGH] CWE-415 CVE-2026-97830: Double free in Windows Internet Information Services allows an unauthorized attacker to deny service Double free in Windows Internet Information Services allows an unauthorized attacker to deny service over a network.

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-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-2026-83670 [HIGH] CWE-125 CVE-2026-83670: Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disc Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.

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-2026-97792 [HIGH] CWE-732 CVE-2026-97792: Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an auth Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) 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.