Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-33837 [HIGH] CWE-122 CVE-2026-33837: Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-50375 [HIGH] CWE-122 CVE-2026-50375: Heap-based buffer overflow in Windows DirectX allows an authorized attacker to elevate privileges lo Heap-based buffer overflow in Windows DirectX allows an authorized attacker to elevate privileges locally.

CVE-2026-56649 [HIGH] CWE-362 CVE-2026-56649: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Network File System allows an unauthorized attacker to execute code over a network.

CVE-2026-49795 [HIGH] CWE-416 CVE-2026-49795: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2025-62549 [HIGH] CWE-822 CVE-2025-62549: Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthor Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

CVE-2026-47289 [HIGH] CWE-122 CVE-2026-47289: Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2025-58718 [HIGH] CWE-416 CVE-2025-58718: Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a netwo Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-54990 [HIGH] CWE-122 CVE-2026-54990: Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-40403 [HIGH] CWE-122 CVE-2026-40403: Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code lo Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to execute code locally.

CVE-2026-24283 [HIGH] CWE-122 CVE-2026-24283: Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privilege Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.

CVE-2026-54982 [HIGH] CWE-191 CVE-2026-54982: Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an una Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

CVE-2025-58722 [HIGH] CWE-122 CVE-2025-58722: Heap-based buffer overflow in Windows DWM allows an authorized attacker to elevate privileges locall Heap-based buffer overflow in Windows DWM allows an authorized attacker to elevate privileges locally.

CVE-2026-20860 [HIGH] CWE-843 CVE-2026-20860: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-56188 [HIGH] CWE-362 CVE-2026-56188: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Network driver allows an unauthorized attacker to execute code over a network.

CVE-2026-50686 [HIGH] CWE-843 CVE-2026-50686: Access of resource using incompatible type ('type confusion') in Windows OLE allows an unauthorized Access of resource using incompatible type ('type confusion') in Windows OLE allows an unauthorized attacker to execute code over a network.

CVE-2025-62452 [HIGH] CWE-122 CVE-2025-62452: Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.

CVE-2025-60715 [HIGH] CWE-122 CVE-2025-60715: Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.

CVE-2026-42980 [HIGH] CWE-122 CVE-2026-42980: Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elev Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-45602 [CRITICAL] CWE-349 CVE-2026-45602: No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering ov No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.

CVE-2026-32225 [HIGH] CWE-693 CVE-2026-32225: Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security f Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.