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Known vulnerabilities in Microsoft Windows 11 Version 24H2

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CVE Summary Score Published
CVE-2026-20936 Out-of-bounds read in Windows NDIS allows an authorized attacker to disclose information with a physical attack 4.3 Medium Jan 13, 2026
CVE-2026-20935 Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an unauthorized attacker… 6.2 Medium Jan 13, 2026
CVE-2026-20931 External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges… 8.0 High Jan 13, 2026
CVE-2026-20874 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management… 7.8 High Jan 13, 2026
CVE-2026-20873 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management… 7.8 High Jan 13, 2026
CVE-2026-20871 Use after free in Desktop Windows Manager allows an authorized attacker to elevate privileges locally 7.8 High Jan 13, 2026
CVE-2026-20872 External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network 6.5 Medium Jan 13, 2026
CVE-2026-20870 Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally 7.8 High Jan 13, 2026
CVE-2026-20867 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management… 7.8 High Jan 13, 2026
CVE-2026-20868 Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to… 8.8 High Jan 13, 2026
CVE-2026-20863 Double free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally 7.0 High Jan 13, 2026
CVE-2026-20866 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management… 7.8 High Jan 13, 2026
CVE-2026-20862 Exposure of sensitive information to an unauthorized actor in Windows Management Services allows an authorized… 5.5 Medium Jan 13, 2026
CVE-2026-20861 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management… 7.8 High Jan 13, 2026
CVE-2026-20853 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows WalletService… 7.4 High Jan 13, 2026
CVE-2026-20854 Use after free in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to execute… 7.5 High Jan 13, 2026
CVE-2026-20849 Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate… 7.5 High Jan 13, 2026
CVE-2026-20848 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows… 7.5 High Jan 13, 2026
CVE-2026-20843 Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to elevate… 7.8 High Jan 13, 2026
CVE-2026-21221 Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access… 7.0 High Jan 13, 2026
CVE-2026-20938 Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to… 7.8 High Jan 13, 2026
CVE-2026-20934 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows… 7.5 High Jan 13, 2026
CVE-2026-20932 Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to… 5.5 Medium Jan 13, 2026
CVE-2026-20926 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows… 7.5 High Jan 13, 2026
CVE-2026-20927 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows… 5.3 Medium Jan 13, 2026

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