Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-83935 [CRITICAL] CWE-122 CVE-2026-83935: Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Microsoft XML allows an unauthorized attacker to execute code over a network.

CVE-2026-97815 [CRITICAL] CWE-122 CVE-2026-97815: Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.

CVE-2024-43452 [HIGH] CWE-367 CVE-2024-43452: Windows Registry Elevation of Privilege Vulnerability Windows Registry Elevation of Privilege Vulnerability

CVE-2025-47984 [HIGH] CWE-693 CVE-2025-47984: Protection mechanism failure in Windows GDI allows an unauthorized attacker to disclose information Protection mechanism failure in Windows GDI allows an unauthorized attacker to disclose information over a network.

CVE-2024-38104 [HIGH] CWE-822 CVE-2024-38104: Windows Fax Service Remote Code Execution Vulnerability Windows Fax Service Remote Code Execution Vulnerability

CVE-2024-49080 [HIGH] CWE-122 CVE-2024-49080: Windows IP Routing Management Snapin Remote Code Execution Vulnerability Windows IP Routing Management Snapin Remote Code Execution Vulnerability

CVE-2025-21376 [HIGH] CWE-122 CVE-2025-21376: Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability

CVE-2026-20868 [HIGH] CWE-122 CVE-2026-20868: 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-2026-83889 [HIGH] CWE-763 CVE-2026-83889: Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code Release of invalid pointer or reference in DNS Server allows an authorized attacker to execute code over a network.

CVE-2026-23669 [HIGH] CWE-416 CVE-2026-23669: Use after free in RPC Runtime allows an authorized attacker to execute code over a network. Use after free in RPC Runtime allows an authorized attacker to execute code over a network.

CVE-2026-62784 [HIGH] CWE-122 CVE-2026-62784: Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorize Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execute code over a network.

CVE-2026-68839 [CRITICAL] CWE-20 CVE-2026-68839: Heap-based buffer overflow in Windows USB Mass Storage Class Driver allows an unauthorized attacker Heap-based buffer overflow in Windows USB Mass Storage Class Driver allows an unauthorized attacker to execute code over a network.

CVE-2026-77493 [CRITICAL] CWE-415 CVE-2026-77493: Double free in Microsoft Graphics Component allows an unauthorized attacker to execute code over a n Double free in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

CVE-2026-69493 [CRITICAL] CWE-122 CVE-2026-69493: Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code Out-of-bounds read in Windows Event Logging Service allows an unauthorized attacker to execute code over a network.

CVE-2026-69715 [CRITICAL] CWE-122 CVE-2026-69715: Out-of-bounds read in Windows Direct Show allows an unauthorized attacker to execute code over a net Out-of-bounds read in Windows Direct Show allows an unauthorized attacker to execute code over a network.

CVE-2025-33070 [HIGH] CWE-908 CVE-2025-33070: Use of uninitialized resource in Windows Netlogon allows an unauthorized attacker to elevate privile Use of uninitialized resource in Windows Netlogon allows an unauthorized attacker to elevate privileges over a network.

CVE-2024-30017 [HIGH] CWE-122 CVE-2024-30017: Windows Hyper-V Remote Code Execution Vulnerability Windows Hyper-V Remote Code Execution Vulnerability

CVE-2024-38116 [HIGH] CWE-122 CVE-2024-38116: Windows IP Routing Management Snapin Remote Code Execution Vulnerability Windows IP Routing Management Snapin Remote Code Execution Vulnerability

CVE-2026-83934 [HIGH] CWE-121 CVE-2026-83934: Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a n Stack-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

CVE-2026-49179 [HIGH] CWE-77 CVE-2026-49179: Improper neutralization of special elements used in a command ('command injection') in Windows Activ Improper neutralization of special elements used in a command ('command injection') in Windows Active Directory allows an unauthorized attacker to execute code over a network.