Microsoft Windows Server 2016 vulnerabilities

CVE-2026-57976 Medium · 6.5 CWE-476 Jul 14, 2026

Windows Active Directory Domain Services Denial of Service Vulnerability

Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

CVE-2026-57097 Medium · 6.8 CWE-426 Jul 14, 2026

Microsoft XML Security Feature Bypass Vulnerability

Untrusted search path in Microsoft XML allows an unauthorized attacker to bypass a security feature with a physical attack.

CVE-2026-56155 High · 7.8 KEV High · 45 CWE-1220 Jul 14, 2026

Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability

Insufficient granularity of access control in Active Directory Federation Services (AD FS) allows an authorized attacker to elevate privileges locally.

CVE-2026-55004 High · 7.8 CWE-415 Jul 14, 2026

Windows Print Configuration Elevation of Privilege Vulnerability

Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-55003 Medium · 6.5 CWE-908 Jul 14, 2026

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.

CVE-2026-55001 High · 7.8 CWE-295 Jul 14, 2026

Active Directory Domain Services Elevation of Privilege Vulnerability

Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.

CVE-2026-54999 High · 8.8 CWE-362 Jul 14, 2026

Windows TCP/IP Remote Code Execution Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an unauthorized attacker to execute code over an adjacent network.

CVE-2026-54997 Medium · 5.5 CWE-908 Jul 14, 2026

Windows SMB Information Disclosure Vulnerability

Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.

CVE-2026-54995 Critical · 9.8 CWE-416 Jul 14, 2026

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.

CVE-2026-54992 High · 7.8 CWE-122 Jul 14, 2026

Microsoft Message Queuing Queue Manager Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.

CVE-2026-54989 High · 7.8 CWE-416 Jul 14, 2026

Quality Windows Audio/Video Experience (QWAVE) Elevation of Privilege Vulnerability

Use after free in Quality Windows Audio/Video Experience (QWAVE) service allows an authorized attacker to elevate privileges locally.

CVE-2026-54987 High · 7.8 CWE-122 Jul 14, 2026

Windows Overlay Filter Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-54986 High · 7.8 CWE-122 Jul 14, 2026

Windows Win32k Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-54983 High · 7.5 CWE-121 Jul 14, 2026

Windows Active Directory Federation Services Denial of Service Vulnerability

Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.

CVE-2026-54982 High · 8.8 CWE-191 Jul 14, 2026

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

CVE-2026-54132 Medium · 6.8 CWE-122 Jul 14, 2026

Windows Kernel Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

CVE-2026-54122 High · 8.4 CWE-122 Jul 14, 2026

Windows GDI+ Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code locally.

CVE-2026-54119 High · 7.5 CWE-835 Jul 14, 2026

Windows Active Directory Denial of Service Vulnerability

Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to deny service over a network.

CVE-2026-54109 High · 7.8 CWE-122 Jul 14, 2026

Windows Resilient File System (ReFS) Remote Code Execution Vulnerability

Integer overflow or wraparound in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.

CVE-2026-54107 High · 7.0 CWE-362 Jul 14, 2026

Windows Win32k Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-50697 High · 7.8 CWE-200 Jul 14, 2026

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-50695 High · 7.5 CWE-121 Jul 14, 2026

Windows Active Directory Federation Services Denial of Service Vulnerability

Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.

CVE-2026-50694 Critical · 9.8 CWE-416 Jul 14, 2026

Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability

Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.

CVE-2026-50356 High · 7.0 CWE-362 Jul 14, 2026

Microsoft Windows App Store Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows App Store allows an authorized attacker to elevate privileges locally.

CVE-2026-50354 High · 7.1 CWE-416 Jul 14, 2026

Windows Kernel Elevation of Privilege Vulnerability

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.