Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-69976 [HIGH] CWE-416 CVE-2026-69976: Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a netwo Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-69997 [HIGH] CWE-416 CVE-2026-69997: Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a netwo Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-69775 [HIGH] CWE-416 CVE-2026-69775: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges over Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges over a network.

CVE-2026-69553 [HIGH] CWE-862 CVE-2026-69553: Missing authorization in Windows Hyper-V allows an authorized attacker to elevate privileges over a Missing authorization in Windows Hyper-V allows an authorized attacker to elevate privileges over a network.

CVE-2023-35634 [HIGH] CWE-121 CVE-2023-35634: Windows Bluetooth Driver Remote Code Execution Vulnerability Windows Bluetooth Driver Remote Code Execution Vulnerability

CVE-2026-26178 [HIGH] CWE-190 CVE-2026-26178: Integer size truncation in Windows Advanced Rasterization Platform (WARP) allows an unauthorized att Integer size truncation in Windows Advanced Rasterization Platform (WARP) allows an unauthorized attacker to elevate privileges locally.

CVE-2026-21255 [HIGH] CWE-284 CVE-2026-21255: Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security featur Improper access control in Windows Hyper-V allows an authorized attacker to bypass a security feature locally.

CVE-2024-20652 [HIGH] CWE-73 CVE-2024-20652: Windows HTML Platforms Security Feature Bypass Vulnerability Windows HTML Platforms Security Feature Bypass Vulnerability

CVE-2024-20698 [HIGH] CWE-190 CVE-2024-20698: Windows Kernel Elevation of Privilege Vulnerability Windows Kernel Elevation of Privilege Vulnerability

CVE-2025-29828 [HIGH] CWE-401 CVE-2025-29828: Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unaut Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to execute code over a network.

CVE-2026-42986 [HIGH] CWE-416 CVE-2026-42986: Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges l Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2026-70563 [HIGH] CWE-59 CVE-2026-70563: Improper link resolution before file access ('link following') in Windows Shell allows an unauthoriz Improper link resolution before file access ('link following') in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-69807 [HIGH] CWE-22 CVE-2026-69807: Improper limitation of a pathname to a restricted directory ('path traversal') in Windows PowerShell Improper limitation of a pathname to a restricted directory ('path traversal') in Windows PowerShell allows an authorized attacker to elevate privileges over a network.

CVE-2026-68827 [HIGH] CWE-122 CVE-2026-68827: Integer underflow (wrap or wraparound) in Windows GDI+ allows an authorized attacker to elevate priv Integer underflow (wrap or wraparound) in Windows GDI+ allows an authorized attacker to elevate privileges over a network.

CVE-2024-38052 [HIGH] CWE-20 CVE-2024-38052: Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability Kernel Streaming WOW Thunk Service Driver Elevation of Privilege 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-2026-83860 [HIGH] CWE-121 CVE-2026-83860: Stack-based buffer overflow in Windows GDI allows an unauthorized attacker to deny service over a ne Stack-based buffer overflow in Windows GDI allows an unauthorized attacker to deny service over a network.

CVE-2025-26668 [HIGH] CWE-122 CVE-2025-26668: Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorize Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

CVE-2026-21236 [HIGH] CWE-122 CVE-2026-21236: Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized att Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-83830 [HIGH] CWE-122 CVE-2026-83830: Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to ele Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.