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Known vulnerabilities in Microsoft Windows 11 Version 23H2

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CVE Summary Score Published
CVE-2026-72930 Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to execute code locally 7.0 High Sep 8, 2026
CVE-2026-71345 Out-of-bounds write in Windows Spaceport.sys allows an authorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-72929 Improper validation of integrity check value in Windows Installer allows an authorized attacker to elevate privileges… 7.8 High Sep 8, 2026
CVE-2026-71341 Out-of-bounds read in Windows Partition Management Driver allows an authorized attacker to disclose information locally 5.5 Medium Sep 8, 2026
CVE-2026-71353 Double free in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate privileges… 7.0 High Sep 8, 2026
CVE-2026-71343 Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to execute code… 7.8 High Sep 8, 2026
CVE-2026-71348 Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical… 6.8 Medium Sep 8, 2026
CVE-2026-72926 Use after free in Windows Internet Connection Sharing (ICS) allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-71339 Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally 6.7 Medium Sep 8, 2026
CVE-2026-71350 Heap-based buffer overflow in Windows Spaceport.sys allows an unauthorized attacker to execute code with a physical… 6.8 Medium Sep 8, 2026
CVE-2026-71340 Use after free in Windows File History Service allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-71332 Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to elevate privileges… 7.0 High Sep 8, 2026
CVE-2026-71334 Heap-based buffer overflow in Windows NFS Portmapper allows an authorized attacker to elevate privileges locally 7.8 High Sep 8, 2026
CVE-2026-71333 Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-71337 Stack-based buffer overflow in Windows Storage Management Provider allows an authorized attacker to elevate privileges… 7.8 High Sep 8, 2026
CVE-2026-71330 Exposure of sensitive system information to an unauthorized control sphere in Windows Services for NFS ONCRPC XDR Driver… 7.5 High Sep 8, 2026
CVE-2026-70587 Improper null termination in Windows Remote Desktop Protocol allows an unauthorized attacker to disclose information… 7.5 High Sep 8, 2026
CVE-2026-71329 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack 6.8 Medium Sep 8, 2026
CVE-2026-70586 Heap-based buffer overflow in Windows Paint allows an unauthorized attacker to execute code over a network 8.8 High Sep 8, 2026
CVE-2026-70584 Access of resource using incompatible type ('type confusion') in Windows Core Messaging allows an authorized attacker to… 7.8 High Sep 8, 2026
CVE-2026-70564 Heap-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges… 7.8 High Sep 8, 2026
CVE-2026-70582 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management… 6.4 Medium Sep 8, 2026
CVE-2026-70563 Improper link resolution before file access ('link following') in Windows Shell allows an unauthorized attacker to… 8.1 High Sep 8, 2026
CVE-2026-70562 Double free in Windows Audio Service allows an authorized attacker to elevate privileges locally 7.0 High Sep 8, 2026
CVE-2026-70342 Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges… 8.1 High Sep 8, 2026

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