Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-62819 [HIGH] CWE-416 CVE-2026-62819: 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-2026-70570 [HIGH] CWE-416 CVE-2026-70570: 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-2026-59134 [HIGH] CWE-20 CVE-2026-59134: 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-2026-61363 [HIGH] CWE-20 CVE-2026-61363: 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-2026-69913 [HIGH] CWE-416 CVE-2026-69913: Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network. Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

CVE-2026-85799 [HIGH] CWE-416 CVE-2026-85799: Use after free in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a Use after free in Network Policy Server (NPS) allows an unauthorized attacker to execute code over a network.

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-2026-45635 [HIGH] CWE-843 CVE-2026-45635: Access of resource using incompatible type ('type confusion') in Universal Plug and Play (upnp.dll) Access of resource using incompatible type ('type confusion') in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.

CVE-2026-45599 [HIGH] CWE-416 CVE-2026-45599: Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code Use after free in Universal Plug and Play (upnp.dll) allows an unauthorized attacker to execute code over a network.

CVE-2026-68834 [HIGH] CWE-121 CVE-2026-68834: Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-68838 [HIGH] CWE-121 CVE-2026-68838: Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-68880 [HIGH] CWE-122 CVE-2026-68880: Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges ove Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges over a network.

CVE-2026-68878 [HIGH] CWE-121 CVE-2026-68878: Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate priv Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate privileges over a network.

CVE-2026-69875 [HIGH] CWE-122 CVE-2026-69875: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69481 [HIGH] CWE-122 CVE-2026-69481: Heap-based buffer overflow in Windows Enterprise App Management allows an authorized attacker to ele Heap-based buffer overflow in Windows Enterprise App Management allows an authorized attacker to elevate privileges over a network.

CVE-2026-69503 [HIGH] CWE-121 CVE-2026-69503: Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privilege Stack-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges over a network.

CVE-2026-69301 [HIGH] CWE-121 CVE-2026-69301: 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-2026-69418 [HIGH] CWE-122 CVE-2026-69418: Heap-based buffer overflow in Volume Manager Driver allows an authorized attacker to elevate privile Heap-based buffer overflow in Volume Manager Driver allows an authorized attacker to elevate privileges over a network.

CVE-2026-61352 [HIGH] CWE-362 CVE-2026-61352: Concurrent execution using shared resource with improper synchronization ('race condition') in Remot Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-69429 [HIGH] CWE-122 CVE-2026-69429: Heap-based buffer overflow in Windows IKE Extension allows an authorized attacker to execute code ov Heap-based buffer overflow in Windows IKE Extension allows an authorized attacker to execute code over a network.