Microsoft Windows Server 2012 R2 vulnerabilities

CVE-2026-50462 [HIGH] CWE-73 CVE-2026-50462: External control of file name or path in Windows Ancillary Function Driver for WinSock allows an aut External control of file name or path in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-68887 [HIGH] CWE-125 CVE-2026-68887: Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthorized attacker to deny Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthorized attacker to deny service over a network.

CVE-2026-69329 [HIGH] CWE-125 CVE-2026-69329: Out-of-bounds read in BranchCache allows an unauthorized attacker to deny service over a network. Out-of-bounds read in BranchCache allows an unauthorized attacker to deny service over a network.

CVE-2026-59132 [HIGH] CWE-476 CVE-2026-59132: Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a ne Null pointer dereference in Windows TCP/IP allows an unauthorized attacker to deny service over a network.

CVE-2026-50647 [HIGH] CWE-835 CVE-2026-50647: Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD F Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.

CVE-2026-58627 [HIGH] CWE-400 CVE-2026-58627: Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny ser Uncontrolled resource consumption in Windows DHCP Server allows an unauthorized attacker to deny service over a network.

CVE-2025-48805 [HIGH] CWE-122 CVE-2025-48805: Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an authorized attacker to exec Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code locally.

CVE-2025-48806 [HIGH] CWE-416 CVE-2025-48806: Use after free in Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code loc Use after free in Microsoft MPEG-2 Video Extension allows an authorized attacker to execute code locally.

CVE-2026-83506 [HIGH] CWE-426 CVE-2026-83506: Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges Untrusted search path in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

CVE-2026-25176 [HIGH] CWE-284 CVE-2026-25176: Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attack Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-70222 [HIGH] CWE-23 CVE-2026-70222: Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-83873 [HIGH] CWE-23 CVE-2026-83873: Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally Relative path traversal in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2025-26687 [HIGH] CWE-416 CVE-2025-26687: Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a Use after free in Windows Win32K - GRFX allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-70113 [HIGH] CWE-190 CVE-2026-70113: Integer overflow or wraparound in Windows Client for NFS allows an authorized attacker to elevate pr Integer overflow or wraparound in Windows Client for NFS allows an authorized attacker to elevate privileges locally.

CVE-2026-69953 [HIGH] CWE-126 CVE-2026-69953: Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges local Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-83637 [HIGH] CWE-125 CVE-2026-83637: Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privilege Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-69959 [HIGH] CWE-125 CVE-2026-69959: Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to execute code locally. Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to execute code locally.

CVE-2026-69950 [HIGH] CWE-126 CVE-2026-69950: Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges local Buffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-83513 [HIGH] CWE-122 CVE-2026-83513: Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attac Use after free in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-69798 [HIGH] CWE-416 CVE-2026-69798: Use after free in Windows Wired AutoConfig Service allows an authorized attacker to elevate privileg Use after free in Windows Wired AutoConfig Service allows an authorized attacker to elevate privileges locally.