Microsoft Windows 11 Version 23H2 vulnerabilities

CVE-2026-81354 [HIGH] CWE-122 CVE-2026-81354: Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges loca Heap-based buffer overflow in Windows Hello allows an authorized attacker to elevate privileges locally.

CVE-2026-69332 [HIGH] CWE-125 CVE-2026-69332: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a networ Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69505 [HIGH] CWE-125 CVE-2026-69505: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a networ Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69458 [HIGH] CWE-125 CVE-2026-69458: Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges over a n Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges over a network.

CVE-2026-20837 [HIGH] CWE-122 CVE-2026-20837: Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.

CVE-2024-49089 [HIGH] CWE-122 CVE-2024-49089: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

CVE-2026-70031 [HIGH] CWE-122 CVE-2026-70031: Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to deny service over a n Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to deny service over a network.

CVE-2026-83795 [HIGH] CWE-122 CVE-2026-83795: Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service Heap-based buffer overflow in Windows IKE Extension allows an unauthorized attacker to deny service over a network.

CVE-2026-73027 [HIGH] CWE-15 CVE-2026-73027: External control of system or configuration setting in Windows Setup Files Cleanup allows an authori External control of system or configuration setting in Windows Setup Files Cleanup allows an authorized attacker to elevate privileges locally.

CVE-2026-20940 [HIGH] CWE-822 CVE-2026-20940: Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker t Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-21246 [HIGH] CWE-122 CVE-2026-21246: Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-69718 [HIGH] CWE-77 CVE-2026-69718: Improper neutralization of special elements used in a command ('command injection') in Windows Updat Improper neutralization of special elements used in a command ('command injection') in Windows Update allows an authorized attacker to elevate privileges locally.

CVE-2026-69588 [HIGH] CWE-401 CVE-2026-69588: Missing release of memory after effective lifetime in Windows TCP/IP allows an unauthorized attacker Missing release of memory after effective lifetime in Windows TCP/IP allows an unauthorized attacker to deny service over a network.

CVE-2026-50696 [HIGH] CWE-122 CVE-2026-50696: Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized at Heap-based buffer overflow in Windows Internet Key Exchange (IKE) Protocol allows an unauthorized attacker to deny service over a network.

CVE-2025-29969 [HIGH] CWE-367 CVE-2025-29969: Time-of-check time-of-use (toctou) race condition in Windows Fundamentals allows an authorized attac Time-of-check time-of-use (toctou) race condition in Windows Fundamentals allows an authorized attacker to execute code over a network.

CVE-2026-102215 [HIGH] CWE-122 CVE-2026-102215: Heap-based buffer overflow in Windows Universal Disk Format File System Driver (UDFS) allows an auth Heap-based buffer overflow in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-102218 [HIGH] CWE-122 CVE-2026-102218: Heap-based buffer overflow in Windows Universal Disk Format File System Driver (UDFS) allows an auth Heap-based buffer overflow in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-102205 [HIGH] CWE-122 CVE-2026-102205: Heap-based buffer overflow in Windows Universal Disk Format File System Driver (UDFS) allows an auth Heap-based buffer overflow in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-83758 [HIGH] CWE-122 CVE-2026-83758: Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to execute code Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to execute code locally.

CVE-2026-85874 [HIGH] CWE-416 CVE-2026-85874: Use after free in Windows Message Queuing Queue Manager allows an authorized attacker to execute cod Use after free in Windows Message Queuing Queue Manager allows an authorized attacker to execute code locally.