Microsoft Windows 11 Version 26H1 vulnerabilities

CVE-2026-50330 [CRITICAL] CWE-122 CVE-2026-50330: Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to elevate privi Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to elevate privileges over a network.

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.

CVE-2026-44815 [CRITICAL] CWE-121 CVE-2026-44815: Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code o Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network.

CVE-2026-85806 [CRITICAL] CWE-121 CVE-2026-85806: Integer underflow (wrap or wraparound) in Network Policy Server (NPS) allows an unauthorized attacke Integer underflow (wrap or wraparound) in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.

CVE-2026-84015 [CRITICAL] CWE-122 CVE-2026-84015: Heap-based buffer overflow in Remote Access Point-to-Point Protocol (PPP) EAP-TLS allows an unauthor Heap-based buffer overflow in Remote Access Point-to-Point Protocol (PPP) EAP-TLS allows an unauthorized attacker to execute code over a network.

CVE-2026-105016 [CRITICAL] CWE-122 CVE-2026-105016: Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.

CVE-2026-69910 [CRITICAL] CWE-121 CVE-2026-69910: Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over Stack-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code over a network.

CVE-2026-72982 [CRITICAL] CWE-121 CVE-2026-72982: Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.

CVE-2026-69762 [HIGH] CWE-121 CVE-2026-69762: Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges ov Stack-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.

CVE-2026-69590 [CRITICAL] CWE-122 CVE-2026-69590: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

CVE-2026-70024 [CRITICAL] CWE-20 CVE-2026-70024: Stack-based buffer overflow in Windows Internet Information Services allows an unauthorized attacker Stack-based buffer overflow in Windows Internet Information Services allows an unauthorized attacker to execute code over a network.

CVE-2026-85809 [CRITICAL] CWE-122 CVE-2026-85809: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

CVE-2026-72950 [CRITICAL] CWE-122 CVE-2026-72950: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

CVE-2026-85792 [CRITICAL] CWE-416 CVE-2026-85792: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access to victim's machine

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-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-2026-83910 [CRITICAL] CWE-787 CVE-2026-83910: 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-2026-100222 [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-2026-83782 [CRITICAL] CWE-122 CVE-2026-83782: Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a n Heap-based buffer overflow in Windows Shell allows an unauthorized attacker to execute code over a network.