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Known vulnerabilities in Microsoft Windows Server 2022

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CVE Summary Score Published
CVE-2026-49803 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows AppX Deployment… 7.0 High Jul 14, 2026
CVE-2026-49805 Improper access control in Windows Win32K allows an authorized attacker to elevate privileges locally 7.0 High Jul 14, 2026
CVE-2026-49801 Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-50333 Missing authentication for critical function in Windows Spaceport.sys allows an authorized attacker to elevate… 7.8 High Jul 14, 2026
CVE-2026-49804 Heap-based buffer overflow in Windows USB Video Driver allows an unauthorized attacker to elevate privileges with a… 6.6 Medium Jul 14, 2026
CVE-2026-50294 Exposure of sensitive system information to an unauthorized control sphere in Windows Kernel allows an unauthorized… 6.2 Medium Jul 14, 2026
CVE-2026-50308 Integer underflow (wrap or wraparound) in Windows NTFS allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-50311 Improper access control in Windows Server allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-49799 Uncontrolled resource consumption in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized… 6.5 Medium Jul 14, 2026
CVE-2026-50299 Integer overflow or wraparound in Windows Storage Spaces Direct allows an unauthorized attacker to execute code with a… 6.8 Medium Jul 14, 2026
CVE-2026-49800 Integer overflow or wraparound in Windows Web Proxy Auto-Discovery Protocol (WPAD) allows an authorized attacker to… 7.8 High Jul 14, 2026
CVE-2026-49798 Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally 9.3 Critical Jul 14, 2026
CVE-2026-49797 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-49795 Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally 8.8 High Jul 14, 2026
CVE-2026-49796 Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-49793 Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-49794 Out-of-bounds read in Windows USB Audio Class driver (usbaudio.sys) allows an unauthorized attacker to disclose… 4.6 Medium Jul 14, 2026
CVE-2026-49792 Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-49791 Improper link resolution before file access ('link following') in Windows Routing and Remote Access Service (RRAS)… 7.1 High Jul 14, 2026
CVE-2026-49790 Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability 7.3 High Jul 14, 2026
CVE-2026-49788 Allocation of resources without limits or throttling in HTTP/2 allows an unauthorized attacker to deny service over a… 7.5 High Jul 14, 2026
CVE-2026-49789 Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally 7.3 High Jul 14, 2026
CVE-2026-49787 Allocation of resources without limits or throttling in Windows HTTP.sys allows an unauthorized attacker to deny service… 7.5 High Jul 14, 2026
CVE-2026-49183 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clipboard… 7.0 High Jul 14, 2026
CVE-2026-49783 Improperly implemented security check for standard in Windows Secure Boot allows an authorized attacker to bypass a… 7.8 High Jul 14, 2026

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