Microsoft Windows 11 25H2 vulnerabilities

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-2026-21244 [HIGH] CWE-122 CVE-2026-21244: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

CVE-2026-21248 [HIGH] CWE-122 CVE-2026-21248: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

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-2025-59254 [HIGH] CWE-122 CVE-2025-59254: Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate priv Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

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-2026-21250 [HIGH] CWE-822 CVE-2026-21250: Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privilege Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.

CVE-2025-60724 [CRITICAL] CWE-122 CVE-2025-60724: Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execut Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code 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

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