Microsoft Windows Server 2022 23h2 vulnerabilities

CVE-2026-35420 High · 7.8 CWE-122 May 12, 2026

Windows Kernel Elevation of Privilege Vulnerability

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

CVE-2026-35418 High · 7.0 CWE-367 May 12, 2026

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-35417 High · 7.8 CWE-843 May 12, 2026

Windows Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-35416 High · 7.0 CWE-416 May 12, 2026

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-35415 High · 7.8 CWE-190 May 12, 2026

Windows Storage Spaces Controller Elevation of Privilege Vulnerability

Integer overflow or wraparound in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.

CVE-2026-34351 High · 7.0 CWE-362 May 12, 2026

Windows TCP/IP Elevation of Privilege Vulnerability

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

CVE-2026-34347 High · 7.0 CWE-416 May 12, 2026

Windows Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-34345 High · 7.0 CWE-362 May 12, 2026

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-34344 High · 7.8 CWE-843 May 12, 2026

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-34343 High · 7.8 CWE-122 May 12, 2026

Windows Application Identity (AppID) Subsystem Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-34342 High · 7.0 CWE-362 May 12, 2026

Windows Print Spooler Elevation of Privilege Vulnerability

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

CVE-2026-34341 High · 7.0 CWE-415 May 12, 2026

Windows Link-Layer Discovery Protocol (LLDP) Elevation of Privilege Vulnerability

Double free in Windows Link-Layer Discovery Protocol (LLDP) allows an authorized attacker to elevate privileges locally.

CVE-2026-34340 High · 7.0 CWE-416 May 12, 2026

Windows Projected File System Elevation of Privilege Vulnerability

Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.

CVE-2026-34339 Medium · 5.5 CWE-476 May 12, 2026

Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability

Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally.

CVE-2026-34338 High · 7.8 CWE-416 May 12, 2026

Windows Telephony Service Elevation of Privilege Vulnerability

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

CVE-2026-34337 High · 7.0 CWE-362 May 12, 2026

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-34336 High · 7.8 CWE-122 May 12, 2026

Windows DWM Core Library Elevation of Privilege Vulnerability

Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-34334 High · 7.0 CWE-362 May 12, 2026

Windows TCP/IP Elevation of Privilege Vulnerability

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

CVE-2026-34333 High · 7.8 CWE-190 May 12, 2026

Windows Win32k Elevation of Privilege Vulnerability

Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-34331 High · 7.0 CWE-362 May 12, 2026

Win32k Elevation of Privilege Vulnerability

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

CVE-2026-34330 High · 7.8 CWE-190 May 12, 2026

Win32k Elevation of Privilege Vulnerability

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

CVE-2026-34329 High · 8.8 CWE-122 May 12, 2026

Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Message Queuing allows an unauthorized attacker to execute code over an adjacent network.

CVE-2026-33841 High · 7.8 CWE-122 May 12, 2026

Windows Kernel Elevation of Privilege Vulnerability

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

CVE-2026-33839 High · 7.0 CWE-362 May 12, 2026

Win32k Elevation of Privilege Vulnerability

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

CVE-2026-33838 High · 7.8 CWE-415 May 12, 2026

Windows Message Queuing (MSMQ) Elevation of Privilege Vulnerability

Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.