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Known vulnerabilities in Microsoft Windows 11 Version 25H2

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CVE Summary Score Published
CVE-2026-49174 Missing authentication for critical function in Microsoft Windows DNS allows an authorized attacker to perform tampering… 6.1 Medium Jul 14, 2026
CVE-2026-49172 Heap-based buffer overflow in Windows FTP Service allows an unauthorized attacker to execute code over a network 9.8 Critical Jul 14, 2026
CVE-2026-49175 Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-49171 Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally 7.5 High Jul 14, 2026
CVE-2026-49176 Improper privilege management in Windows WalletService allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-49170 Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate… 7.8 High Jul 14, 2026
CVE-2026-49168 Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to elevate privileges… 6.8 Medium Jul 14, 2026
CVE-2026-49166 Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-49167 Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally 4.7 Medium Jul 14, 2026
CVE-2026-49164 Heap-based buffer overflow in Active Directory Domain Services allows an unauthorized attacker to execute code over a… 8.1 High Jul 14, 2026
CVE-2026-49165 Use of uninitialized resource in Microsoft Windows App Store allows an authorized attacker to disclose information… 7.1 High Jul 14, 2026
CVE-2026-48571 Use after free in Windows App Installer allows an authorized attacker to elevate privileges locally 7.0 High Jul 14, 2026
CVE-2026-49162 Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally 7.0 High Jul 14, 2026
CVE-2026-42990 Heap-based buffer overflow in SQL Server ODBC driver allows an unauthorized attacker to execute code over a network 9.8 Critical Jul 14, 2026
CVE-2026-48572 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Installer… 7.0 High Jul 14, 2026
CVE-2026-42975 Heap-based buffer overflow in Windows Bluetooth Port Driver allows an unauthorized attacker to execute code over an… 8.0 High Jul 14, 2026
CVE-2026-42900 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Store… 8.1 High Jul 14, 2026
CVE-2026-34346 Cleartext transmission of sensitive information in Windows Ancillary Function Driver for WinSock allows an authorized… 5.5 Medium Jul 14, 2026
CVE-2026-34349 Exposure of sensitive information to an unauthorized actor in Windows Media allows an authorized attacker to disclose… 5.5 Medium Jul 14, 2026
CVE-2026-42982 Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate… 7.8 High Jul 14, 2026
CVE-2026-42993 Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network 7.5 High Jun 9, 2026
CVE-2026-44812 Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally 7.8 High Jun 9, 2026
CVE-2026-44803 Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally 7.8 High Jun 9, 2026
CVE-2026-44801 Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network 7.5 High Jun 9, 2026
CVE-2026-42985 Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network 8.8 High Jun 9, 2026

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