Microsoft Windows 11 23H2 vulnerabilities

CVE-2025-55234 [CRITICAL] CWE-287 CVE-2025-55234: SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who suc SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extend

CVE-2023-36397 [CRITICAL] CWE-126 CVE-2023-36397: Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability

CVE-2026-21244 [HIGH] CWE-122 CVE-2026-21244: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

CVE-2026-21248 [HIGH] CWE-122 CVE-2026-21248: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

CVE-2026-45657 [CRITICAL] CWE-122 CVE-2026-45657: Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network. Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.

CVE-2025-59254 [HIGH] CWE-122 CVE-2025-59254: 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-2024-38144 [HIGH] CWE-190 CVE-2024-38144: Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability

CVE-2026-49160 [HIGH] CWE-400 CVE-2026-49160: Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a n Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.

CVE-2025-49683 [HIGH] CWE-122 CVE-2025-49683: Integer overflow or wraparound in Virtual Hard Disk (VHDX) allows an unauthorized attacker to execut Integer overflow or wraparound in Virtual Hard Disk (VHDX) allows an unauthorized attacker to execute code locally.

CVE-2024-38060 [HIGH] CWE-122 CVE-2024-38060: Windows Imaging Component Remote Code Execution Vulnerability Windows Imaging Component Remote Code Execution Vulnerability

CVE-2025-29971 [HIGH] CWE-125 CVE-2025-29971: Out-of-bounds read in Web Threat Defense (WTD.sys) allows an unauthorized attacker to deny service o Out-of-bounds read in Web Threat Defense (WTD.sys) allows an unauthorized attacker to deny service over a network.

CVE-2024-20697 [HIGH] CWE-122 CVE-2024-20697: Windows libarchive Remote Code Execution Vulnerability Windows libarchive Remote Code Execution Vulnerability

CVE-2024-21357 [HIGH] CWE-843 CVE-2024-21357: Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability

CVE-2025-24076 [HIGH] CWE-284 CVE-2025-24076: 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-2025-49730 [HIGH] CWE-122 CVE-2025-49730: Time-of-check time-of-use (toctou) race condition in Microsoft Windows QoS scheduler allows an autho Time-of-check time-of-use (toctou) race condition in Microsoft Windows QoS scheduler allows an authorized attacker to elevate privileges locally.

CVE-2025-60724 [CRITICAL] CWE-122 CVE-2025-60724: Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execut Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

CVE-2026-41096 [CRITICAL] CWE-122 CVE-2026-41096: Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Windows DNS allows an unauthorized attacker to execute code over a network.

CVE-2025-29962 [HIGH] CWE-122 CVE-2025-29962: Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over a network.

CVE-2024-49122 [HIGH] CWE-416 CVE-2024-49122: Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

CVE-2026-69676 [HIGH] CWE-294 CVE-2026-69676: Authentication bypass by capture-replay in Windows Kerberos allows an authorized attacker to execute Authentication bypass by capture-replay in Windows Kerberos allows an authorized attacker to execute code over a network.