Microsoft Windows 10 21H2 vulnerabilities

CVE-2026-69408 [CRITICAL] CWE-122 CVE-2026-69408: Integer overflow or wraparound in Microsoft Windows Media Foundation allows an unauthorized attacker Integer overflow or wraparound in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code over a network.

CVE-2026-42990 [CRITICAL] CWE-122 CVE-2026-42990: Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network.

CVE-2026-50447 [CRITICAL] CWE-122 CVE-2026-50447: Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute cod Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over a network.

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-2026-58594 [CRITICAL] CWE-190 CVE-2026-58594: Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a network.

CVE-2026-50694 [CRITICAL] CWE-416 CVE-2026-50694: Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to Use after free in Windows Secure Socket Tunneling Protocol (SSTP) 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-2023-28220 [HIGH] CWE-591 CVE-2023-28220: Layer 2 Tunneling Protocol Remote Code Execution Vulnerability Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

CVE-2023-28219 [HIGH] CWE-591 CVE-2023-28219: Layer 2 Tunneling Protocol Remote Code Execution Vulnerability Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

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-2026-58626 [HIGH] CWE-416 CVE-2026-58626: Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over Use after free in Windows Remote Desktop Services allows an authorized attacker to execute code over a network.

CVE-2026-50369 [HIGH] CWE-362 CVE-2026-50369: Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privilege Use after free in Windows Remote Desktop Services allows an authorized attacker to elevate privileges over a network.