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Known vulnerabilities in Microsoft Windows Server 2016 (Server Core installation)

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CVE Summary Score Published
CVE-2026-54128 Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally 8.4 High Jul 14, 2026
CVE-2026-50690 Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-50692 Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally 8.8 High Jul 14, 2026
CVE-2026-50686 Access of resource using incompatible type ('type confusion') in Windows OLE allows an unauthorized attacker to… 8.1 High Jul 14, 2026
CVE-2026-50683 Heap-based buffer overflow in Windows DHCP Server allows an authorized attacker to elevate privileges over an adjacent… 8.0 High Jul 14, 2026
CVE-2026-50685 Double free in Windows DHCP Server allows an authorized attacker to execute code over a network 7.5 High Jul 14, 2026
CVE-2026-50681 Exposure of sensitive information to an unauthorized actor in Windows Cryptographic Services allows an authorized… 5.5 Medium Jul 14, 2026
CVE-2026-54121 Improper authorization in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate… 8.8 High Jul 14, 2026
CVE-2026-50688 Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-50684 Improper neutralization of input during web page generation ('cross-site scripting') in Active Directory Federation… 4.8 Medium Jul 14, 2026
CVE-2026-54115 Integer overflow or wraparound in Windows Active Directory allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-50673 Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-50668 Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack 6.8 Medium Jul 14, 2026
CVE-2026-50669 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service… 7.0 High Jul 14, 2026
CVE-2026-50666 Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges over a… 8.8 High Jul 14, 2026
CVE-2026-50667 Concurrent execution using shared resource with improper synchronization ('race condition') in Windows NTFS allows an… 7.8 High Jul 14, 2026
CVE-2026-50661 Protection mechanism failure in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a… 6.1 Medium Jul 14, 2026
CVE-2026-50655 Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-50647 Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an… 7.5 High Jul 14, 2026
CVE-2026-50518 Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network 9.8 Critical Jul 14, 2026
CVE-2026-50509 Deserialization of untrusted data in Windows Wireless Wide Area Network Service allows an authorized attacker to elevate… 7.8 High Jul 14, 2026
CVE-2026-50496 Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose information over… 7.5 High Jul 14, 2026
CVE-2026-50504 Buffer over-read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network 6.5 Medium Jul 14, 2026
CVE-2026-50497 Off-by-one error in Windows Remote Desktop Protocol allows an unauthorized attacker to disclose information over a… 6.5 Medium Jul 14, 2026
CVE-2026-50491 Out-of-bounds read in Code Integrity DLL (ci.dll) allows an authorized attacker to elevate privileges locally 7.0 High Jul 14, 2026

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