Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-32202 [MEDIUM] CWE-693 CVE-2026-32202: Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing ov Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-33824 [CRITICAL] CWE-415 CVE-2026-33824: Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network. Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.

CVE-2026-96951 [HIGH] CWE-77 CVE-2026-96951: Improper neutralization of special elements used in a command ('command injection') in Windows Shell Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

CVE-2026-81963 [HIGH] CWE-59 CVE-2026-81963: Improper link resolution before file access ('link following') in Windows Update Stack allows an aut Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

CVE-2026-68820 [HIGH] CWE-416 CVE-2026-68820: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-25187 [HIGH] CWE-59 CVE-2026-25187: Improper link resolution before file access ('link following') in Winlogon allows an authorized atta Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.

CVE-2026-45586 [HIGH] CWE-59 CVE-2026-45586: Improper link resolution before file access ('link following') in Windows Collaborative Translation Improper link resolution before file access ('link following') in Windows Collaborative Translation Framework allows an authorized attacker to elevate privileges locally.

CVE-2026-47291 [CRITICAL] CWE-122 CVE-2026-47291: Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code o Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.

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-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-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-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-2026-69910 [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