Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-83906 [MEDIUM] CWE-303 CVE-2026-83906: Incorrect implementation of authentication algorithm in Windows Shell allows an unauthorized attacke Incorrect implementation of authentication algorithm in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-97842 [MEDIUM] CWE-125 CVE-2026-97842: Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a networ Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network.

CVE-2026-87714 [MEDIUM] CWE-862 CVE-2026-87714: Missing authorization in WebDAV allows an authorized attacker to bypass a security feature over a ne Missing authorization in WebDAV allows an authorized attacker to bypass a security feature over a network.

CVE-2023-36705 [HIGH] CWE-59 CVE-2023-36705: Windows Installer Elevation of Privilege Vulnerability Windows Installer Elevation of Privilege Vulnerability

CVE-2025-59194 [HIGH] CWE-908 CVE-2025-59194: Use of uninitialized resource in Windows Kernel allows an authorized attacker to elevate privileges Use of uninitialized resource in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2024-21354 [HIGH] CWE-122 CVE-2024-21354: Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability Microsoft Message Queuing (MSMQ) Elevation of Privilege Vulnerability

CVE-2023-36719 [HIGH] CWE-20 CVE-2023-36719: Microsoft Speech Application Programming Interface (SAPI) Elevation of Privilege Vulnerability Microsoft Speech Application Programming Interface (SAPI) Elevation of Privilege Vulnerability

CVE-2023-36408 [HIGH] CWE-122 CVE-2023-36408: Windows Hyper-V Elevation of Privilege Vulnerability Windows Hyper-V Elevation of Privilege Vulnerability

CVE-2023-36399 [HIGH] CWE-59 CVE-2023-36399: Windows Storage Elevation of Privilege Vulnerability Windows Storage Elevation of Privilege Vulnerability

CVE-2024-29052 [HIGH] CWE-269 CVE-2024-29052: Windows Storage Elevation of Privilege Vulnerability Windows Storage Elevation of Privilege Vulnerability

CVE-2025-54894 [HIGH] CWE-122 CVE-2025-54894: Local Security Authority Subsystem Service Elevation of Privilege Vulnerability Local Security Authority Subsystem Service Elevation of Privilege Vulnerability

CVE-2026-20816 [HIGH] CWE-367 CVE-2026-20816: Time-of-check time-of-use (toctou) race condition in Windows Installer allows an authorized attacker Time-of-check time-of-use (toctou) race condition in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2024-30031 [HIGH] CWE-416 CVE-2024-30031: Windows CNG Key Isolation Service Elevation of Privilege Vulnerability Windows CNG Key Isolation Service Elevation of Privilege Vulnerability

CVE-2025-58720 [HIGH] CWE-1240 CVE-2025-58720: Use of a cryptographic primitive with a risky implementation in Windows Cryptographic Services allow Use of a cryptographic primitive with a risky implementation in Windows Cryptographic Services allows an authorized attacker to disclose information locally.

CVE-2025-24994 [HIGH] CWE-284 CVE-2025-24994: Improper access control in Windows Cross Device Service allows an authorized attacker to elevate pri Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.

CVE-2024-26232 [HIGH] CWE-843 CVE-2024-26232: Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

CVE-2024-43581 [HIGH] CWE-73 CVE-2024-43581: Microsoft OpenSSH for Windows Remote Code Execution Vulnerability Microsoft OpenSSH for Windows Remote Code Execution Vulnerability

CVE-2025-27491 [HIGH] CWE-416 CVE-2025-27491: Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network. Use after free in Windows Hyper-V allows an authorized attacker to execute code over a network.

CVE-2026-40414 [HIGH] CWE-476 CVE-2026-40414: Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an a Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over an adjacent network.

CVE-2025-32721 [HIGH] CWE-59 CVE-2025-32721: Improper link resolution before file access ('link following') in Windows Recovery Driver allows an Improper link resolution before file access ('link following') in Windows Recovery Driver allows an authorized attacker to elevate privileges locally.