Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-50507 [MEDIUM] CWE-306 CVE-2026-50507: Missing authentication for critical function in Windows BitLocker allows an unauthorized attacker to Missing authentication for critical function in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2025-24052 [HIGH] CWE-121 CVE-2025-24052: Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver has been removed in the October cumulative update. Fax modem hardware dependent on this specific driver will no longer work on Window

CVE-2024-38127 [HIGH] CWE-126 CVE-2024-38127: Windows Hyper-V Elevation of Privilege Vulnerability Windows Hyper-V Elevation of Privilege Vulnerability

CVE-2026-69846 [HIGH] CWE-190 CVE-2026-69846: Integer overflow or wraparound in Windows Secure Kernel Mode allows an authorized attacker to elevat Integer overflow or wraparound in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.

CVE-2026-48573 [HIGH] CWE-1329 CVE-2026-48573: No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feat No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2026-48576 [HIGH] CWE-1329 CVE-2026-48576: No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feat No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally.

CVE-2025-27727 [HIGH] CWE-59 CVE-2025-27727: Improper link resolution before file access ('link following') in Windows Installer allows an author Improper link resolution before file access ('link following') in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2025-29812 [HIGH] CWE-822 CVE-2025-29812: Untrusted pointer dereference in Windows Kernel Memory allows an authorized attacker to elevate priv Untrusted pointer dereference in Windows Kernel Memory allows an authorized attacker to elevate privileges locally.

CVE-2024-38245 [HIGH] CWE-20 CVE-2024-38245: Kernel Streaming Service Driver Elevation of Privilege Vulnerability Kernel Streaming Service Driver Elevation of Privilege Vulnerability

CVE-2024-21363 [HIGH] CWE-843 CVE-2024-21363: Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

CVE-2026-20875 [HIGH] CWE-476 CVE-2026-20875: Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an una Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

CVE-2024-38238 [HIGH] CWE-122 CVE-2024-38238: Kernel Streaming Service Driver Elevation of Privilege Vulnerability Kernel Streaming Service Driver Elevation of Privilege Vulnerability

CVE-2024-38243 [HIGH] CWE-20 CVE-2024-38243: Kernel Streaming Service Driver Elevation of Privilege Vulnerability Kernel Streaming Service Driver Elevation of Privilege Vulnerability

CVE-2024-20682 [HIGH] CWE-822 CVE-2024-20682: Windows Cryptographic Services Remote Code Execution Vulnerability Windows Cryptographic Services Remote Code Execution Vulnerability

CVE-2024-38057 [HIGH] CWE-125 CVE-2024-38057: Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability

CVE-2024-38070 [HIGH] CWE-693 CVE-2024-38070: Windows LockDown Policy (WLDP) Security Feature Bypass Vulnerability Windows LockDown Policy (WLDP) Security Feature Bypass Vulnerability

CVE-2025-21375 [HIGH] CWE-20 CVE-2025-21375: Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability

CVE-2025-27476 [HIGH] CWE-416 CVE-2025-27476: Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally. Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.

CVE-2025-27467 [HIGH] CWE-416 CVE-2025-27467: Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally. Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.

CVE-2025-27730 [HIGH] CWE-415 CVE-2025-27730: Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally. Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.