Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-33839 [HIGH] CWE-362 CVE-2026-33839: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-34331 [HIGH] CWE-362 CVE-2026-34331: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-85357 [HIGH] CWE-362 CVE-2026-85357: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Phone Service allows an authorized attacker to elevate privileges locally.

CVE-2026-85824 [HIGH] CWE-362 CVE-2026-85824: Use after free in Windows Composite Image File System allows an authorized attacker to elevate privi Use after free in Windows Composite Image File System allows an authorized attacker to elevate privileges locally.

CVE-2026-85825 [HIGH] CWE-362 CVE-2026-85825: 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-2026-88146 [HIGH] CWE-362 CVE-2026-88146: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Background Intelligent Transfer Service (BITS) allows an authorized attacker to elevate privileges locally.

CVE-2026-85912 [HIGH] CWE-362 CVE-2026-85912: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Clipboard User Service allows an authorized attacker to elevate privileges locally.

CVE-2026-45597 [HIGH] CWE-362 CVE-2026-45597: Concurrent execution using shared resource with improper synchronization ('race condition') in UI Au Concurrent execution using shared resource with improper synchronization ('race condition') in UI Automation Manager (uiamanager.dll) allows an authorized attacker to elevate privileges locally.

CVE-2026-26174 [HIGH] CWE-362 CVE-2026-26174: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

CVE-2026-27926 [HIGH] CWE-362 CVE-2026-27926: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-45596 [HIGH] CWE-362 CVE-2026-45596: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-32219 [HIGH] CWE-362 CVE-2026-32219: Double free in Microsoft Brokering File System allows an authorized attacker to elevate privileges l Double free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

CVE-2026-33099 [HIGH] CWE-416 CVE-2026-33099: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-33100 [HIGH] CWE-416 CVE-2026-33100: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-32068 [HIGH] CWE-362 CVE-2026-32068: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SSDP Service allows an authorized attacker to elevate privileges locally.

CVE-2026-34337 [HIGH] CWE-362 CVE-2026-34337: Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate pr Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-88096 [HIGH] CWE-362 CVE-2026-88096: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DCOM Server allows an authorized attacker to elevate privileges locally.

CVE-2026-88107 [HIGH] CWE-362 CVE-2026-88107: Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate pr Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-85904 [HIGH] CWE-362 CVE-2026-85904: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-26169 [MEDIUM] CWE-126 CVE-2026-26169: Buffer over-read in Windows Kernel Memory allows an authorized attacker to disclose information loca Buffer over-read in Windows Kernel Memory allows an authorized attacker to disclose information locally.