Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-83869 [CRITICAL] CWE-191 CVE-2026-83869: Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.

CVE-2026-69714 [HIGH] CWE-121 CVE-2026-69714: Stack-based buffer overflow in Windows Device Association Service allows an authorized attacker to e Stack-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges over a network.

CVE-2024-21416 [CRITICAL] CWE-122 CVE-2024-21416: Windows TCP/IP Remote Code Execution Vulnerability Windows TCP/IP Remote Code Execution Vulnerability

CVE-2026-100219 [CRITICAL] CWE-416 CVE-2026-100219: Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network. Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.

CVE-2026-100222 [CRITICAL] CWE-122 CVE-2026-100222: Heap-based buffer overflow in Network Policy Server (NPS) allows an unauthorized attacker to execute Heap-based buffer overflow in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.

CVE-2026-69819 [CRITICAL] CWE-787 CVE-2026-69819: Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network. Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

CVE-2026-62815 [CRITICAL] CWE-416 CVE-2026-62815: Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network. Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.

CVE-2025-21369 [HIGH] CWE-122 CVE-2025-21369: Microsoft Digest Authentication Remote Code Execution Vulnerability Microsoft Digest Authentication Remote Code Execution Vulnerability

CVE-2025-21368 [HIGH] CWE-122 CVE-2025-21368: Microsoft Digest Authentication Remote Code Execution Vulnerability Microsoft Digest Authentication Remote Code Execution Vulnerability

CVE-2025-49744 [HIGH] CWE-122 CVE-2025-49744: Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

CVE-2023-36017 [HIGH] CWE-843 CVE-2023-36017: Windows Scripting Engine Memory Corruption Vulnerability Windows Scripting Engine Memory Corruption Vulnerability

CVE-2026-102217 [HIGH] CWE-41 CVE-2026-102217: Improper resolution of path equivalence in WebDAV allows an authorized attacker to elevate privilege Improper resolution of path equivalence in WebDAV allows an authorized attacker to elevate privileges over a network.

CVE-2026-73012 [HIGH] CWE-122 CVE-2026-73012: Heap-based buffer overflow in Windows Management Services allows an authorized attacker to elevate p Heap-based buffer overflow in Windows Management Services allows an authorized attacker to elevate privileges over a network.

CVE-2026-71352 [HIGH] CWE-191 CVE-2026-71352: Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authori Integer underflow (wrap or wraparound) in Windows Remote Access Connection Manager allows an authorized attacker to execute code over a network.

CVE-2026-69512 [HIGH] CWE-122 CVE-2026-69512: Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges over a network.

CVE-2026-69625 [HIGH] CWE-122 CVE-2026-69625: Heap-based buffer overflow in Windows Connected User Experiences and Telemetry allows an authorized Heap-based buffer overflow in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges over a network.

CVE-2024-38199 [CRITICAL] CWE-416 CVE-2024-38199: Windows Line Printer Daemon (LPD) Service Remote Code Execution Vulnerability Windows Line Printer Daemon (LPD) Service Remote Code Execution Vulnerability

CVE-2025-21307 [CRITICAL] CWE-416 CVE-2025-21307: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

CVE-2026-100202 [CRITICAL] CWE-416 CVE-2026-100202: Use after free in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute c Use after free in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code over a network.

CVE-2026-96909 [CRITICAL] CWE-122 CVE-2026-96909: Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over Heap-based buffer overflow in Windows BitLocker allows an unauthorized attacker to execute code over a network.