Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-85939 [MEDIUM] CWE-1390 CVE-2026-85939: Weak authentication in Windows Kernel allows an authorized attacker to bypass a security feature ove Weak authentication in Windows Kernel allows an authorized attacker to bypass a security feature over a network.

CVE-2026-49165 [HIGH] CWE-908 CVE-2026-49165: Use of uninitialized resource in Microsoft Windows App Store allows an authorized attacker to disclo Use of uninitialized resource in Microsoft Windows App Store allows an authorized attacker to disclose information locally.

CVE-2026-50465 [HIGH] CWE-284 CVE-2026-50465: Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering Improper access control in Microsoft Windows DNS allows an authorized attacker to perform tampering locally.

CVE-2025-55680 [HIGH] CWE-367 CVE-2025-55680: Time-of-check time-of-use (toctou) race condition in Windows Cloud Files Mini Filter Driver allows a Time-of-check time-of-use (toctou) race condition in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-53717 [HIGH] CWE-807 CVE-2025-53717: Reliance on untrusted inputs in a security decision in Windows Virtualization-Based Security (VBS) E Reliance on untrusted inputs in a security decision in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVE-2025-62218 [HIGH] CWE-362 CVE-2025-62218: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Wireless Provisioning System allows an authorized attacker to elevate privileges locally.

CVE-2026-85362 [HIGH] CWE-763 CVE-2026-85362: Release of invalid pointer or reference in Windows Management Instrumentation allows an authorized a Release of invalid pointer or reference in Windows Management Instrumentation allows an authorized attacker to elevate privileges locally.

CVE-2026-85853 [HIGH] CWE-125 CVE-2026-85853: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-83750 [HIGH] CWE-122 CVE-2026-83750: Time-of-check time-of-use (toctou) race condition in Windows Error Reporting allows an authorized at Time-of-check time-of-use (toctou) race condition in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

CVE-2026-47648 [HIGH] CWE-426 CVE-2026-47648: Untrusted search path in Windows Storage allows an authorized attacker to elevate privileges locally Untrusted search path in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-69859 [HIGH] CWE-191 CVE-2026-69859: Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) a Time-of-check time-of-use (toctou) race condition in Windows USB Audio Class driver (usbaudio.sys) allows an authorized attacker to elevate privileges locally.

CVE-2026-88098 [HIGH] CWE-822 CVE-2026-88098: Untrusted pointer dereference in Windows Security Support Provider Interface allows an authorized at Untrusted pointer dereference in Windows Security Support Provider Interface allows an authorized attacker to elevate privileges locally.

CVE-2025-59193 [HIGH] CWE-362 CVE-2025-59193: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-27929 [HIGH] CWE-367 CVE-2026-27929: Time-of-check time-of-use (toctou) race condition in Windows LUAFV allows an authorized attacker to Time-of-check time-of-use (toctou) race condition in Windows LUAFV allows an authorized attacker to elevate privileges locally.

CVE-2026-45487 [HIGH] CWE-367 CVE-2026-45487: Time-of-check time-of-use (TOCTOU) race condition in Program Compatibility Assistant Service allows Time-of-check time-of-use (TOCTOU) race condition in Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

CVE-2026-85920 [HIGH] CWE-367 CVE-2026-85920: Time-of-check time-of-use (toctou) race condition in Windows BitLocker allows an authorized attacker Time-of-check time-of-use (toctou) race condition in Windows BitLocker allows an authorized attacker to elevate privileges locally.

CVE-2026-88160 [HIGH] CWE-362 CVE-2026-88160: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-50492 [MEDIUM] CWE-122 CVE-2026-50492: Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker t Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code 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-2026-69902 [MEDIUM] CWE-822 CVE-2026-69902: Untrusted pointer dereference in Windows NTFS allows an authorized attacker to execute code locally. Untrusted pointer dereference in Windows NTFS allows an authorized attacker to execute code locally.