Microsoft Windows 11 Version 23H2 vulnerabilities

CVE-2026-69329 [HIGH] CWE-125 CVE-2026-69329: Out-of-bounds read in BranchCache allows an unauthorized attacker to deny service over a network. Out-of-bounds read in BranchCache allows an unauthorized attacker to deny service over a network.

CVE-2026-54113 [HIGH] CWE-770 CVE-2026-54113: Allocation of resources without limits or throttling in Windows Kernel allows an unauthorized attack Allocation of resources without limits or throttling in Windows Kernel allows an unauthorized attacker to deny service over a network.

CVE-2026-59132 [HIGH] CWE-476 CVE-2026-59132: Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a ne Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.

CVE-2026-70184 [HIGH] CWE-41 CVE-2026-70184: Improper resolution of path equivalence in Windows Backup Engine allows an authorized attacker to el Improper resolution of path equivalence in Windows Backup Engine allows an authorized attacker to elevate privileges locally.

CVE-2025-59255 [HIGH] CWE-122 CVE-2025-59255: Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate priv Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2025-48805 [HIGH] CWE-122 CVE-2025-48805: Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an authorized attacker to exec Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code locally.

CVE-2025-48806 [HIGH] CWE-416 CVE-2025-48806: Use after free in Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code loc Use after free in Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code locally.

CVE-2026-69926 [HIGH] CWE-843 CVE-2026-69926: Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an au Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-69880 [HIGH] CWE-843 CVE-2026-69880: Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an au Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-83506 [HIGH] CWE-426 CVE-2026-83506: Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

CVE-2026-20923 [HIGH] CWE-416 CVE-2026-20923: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-25176 [HIGH] CWE-284 CVE-2026-25176: Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attack Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-70222 [HIGH] CWE-23 CVE-2026-70222: Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-83873 [HIGH] CWE-23 CVE-2026-83873: Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2025-26687 [HIGH] CWE-416 CVE-2025-26687: Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-20865 [HIGH] CWE-416 CVE-2026-20865: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-70113 [HIGH] CWE-190 CVE-2026-70113: Integer overflow or wraparound in Windows Client for NFS allows an authorized attacker to elevate pr Integer overflow or wraparound in Windows Client for NFS allows an authorized attacker to elevate privileges locally.

CVE-2026-69942 [HIGH] CWE-126 CVE-2026-69942: Buffer over-read in Windows Overlay Filter allows an authorized attacker to execute code locally. Buffer over-read in Windows Overlay Filter allows an authorized attacker to execute code locally.

CVE-2026-69953 [HIGH] CWE-126 CVE-2026-69953: Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges local Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-61931 [HIGH] CWE-416 CVE-2026-61931: Use after free in Windows Perception Simulation Service allows an authorized attacker to elevate pri Use after free in Windows Perception Simulation Service allows an authorized attacker to elevate privileges locally.