Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-45601 [HIGH] CWE-362 CVE-2026-45601: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock 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-2026-45598 [HIGH] CWE-362 CVE-2026-45598: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-45603 [HIGH] CWE-362 CVE-2026-45603: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-26173 [HIGH] CWE-362 CVE-2026-26173: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-54107 [HIGH] CWE-362 CVE-2026-54107: 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 allows an authorized attacker to elevate privileges locally.

CVE-2026-50404 [HIGH] CWE-362 CVE-2026-50404: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges locally.

CVE-2026-54112 [HIGH] CWE-362 CVE-2026-54112: 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 allows an authorized attacker to elevate privileges locally.

CVE-2026-50450 [HIGH] CWE-362 CVE-2026-50450: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Wireless Wide Area Network Service allows an authorized attacker to elevate privileges locally.

CVE-2026-50672 [HIGH] CWE-362 CVE-2026-50672: Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally. Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-54132 [MEDIUM] CWE-122 CVE-2026-54132: Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges w Heap-based buffer overflow in Windows Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

CVE-2026-50668 [MEDIUM] CWE-122 CVE-2026-50668: Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges wit Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.

CVE-2025-58729 [MEDIUM] CWE-1287 CVE-2025-58729: Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an auth Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.

CVE-2025-58739 [MEDIUM] CWE-200 CVE-2025-58739: Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an unauth Exposure of sensitive information to an unauthorized actor in Windows File Explorer allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-50366 [MEDIUM] CWE-476 CVE-2026-50366: Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny s Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

CVE-2026-57976 [MEDIUM] CWE-476 CVE-2026-57976: Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny s Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.

CVE-2026-55003 [MEDIUM] CWE-908 CVE-2026-55003: Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.

CVE-2026-58546 [MEDIUM] CWE-908 CVE-2026-58546: Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.

CVE-2025-60723 [MEDIUM] CWE-362 CVE-2025-60723: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DirectX allows an authorized attacker to deny service over a network.

CVE-2025-59282 [HIGH] CWE-362 CVE-2025-59282: Concurrent execution using shared resource with improper synchronization ('race condition') in Inbox Concurrent execution using shared resource with improper synchronization ('race condition') in Inbox COM Objects allows an unauthorized attacker to execute code locally.