Skip to content

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

Is your version affected?

CVE Summary Score Published
CVE-2026-21508 Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally 7.0 High Feb 10, 2026
CVE-2026-21525 Exploited Microsoft Windows NULL Pointer Dereference Vulnerability 6.2 Medium Feb 10, 2026
CVE-2026-21510 Exploited Microsoft Windows Shell Protection Mechanism Failure Vulnerability 8.8 High Feb 10, 2026
CVE-2026-21513 Exploited Microsoft Internet Explorer Protection Mechanism Failure Vulnerability 8.8 High Feb 10, 2026
CVE-2026-21533 Exploited Microsoft Windows Improper Privilege Management Vulnerability 7.8 High Feb 10, 2026
CVE-2026-21236 Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate… 7.8 High Feb 10, 2026
CVE-2026-21235 Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally 7.3 High Feb 10, 2026
CVE-2026-21246 Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally 7.8 High Feb 10, 2026
CVE-2026-21247 Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally 7.3 High Feb 10, 2026
CVE-2026-21248 Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally 7.3 High Feb 10, 2026
CVE-2026-21519 Exploited Microsoft Windows Type Confusion Vulnerability 7.8 High Feb 10, 2026
CVE-2026-20937 Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to… 5.5 Medium Jan 13, 2026
CVE-2026-20939 Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an authorized attacker to… 5.5 Medium Jan 13, 2026
CVE-2026-20936 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-2026-20931 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-2026-20929 Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network 7.5 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-2026-20868 Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to… 8.8 High Jan 13, 2026
CVE-2026-20849 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-2026-20940 Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges… 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

Other Microsoft products