Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-62726 [HIGH] CWE-416 CVE-2026-62726: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62723 [HIGH] CWE-416 CVE-2026-62723: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62725 [HIGH] CWE-416 CVE-2026-62725: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62724 [HIGH] CWE-416 CVE-2026-62724: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2025-59507 [HIGH] CWE-362 CVE-2025-59507: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2025-59508 [HIGH] CWE-362 CVE-2025-59508: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2025-59506 [HIGH] CWE-362 CVE-2025-59506: 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 elevate privileges locally.

CVE-2026-88103 [HIGH] CWE-416 CVE-2026-88103: Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privil Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

CVE-2026-88113 [HIGH] CWE-416 CVE-2026-88113: Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privil Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.

CVE-2025-59259 [MEDIUM] CWE-1287 CVE-2025-59259: 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-2025-50172 [MEDIUM] CWE-770 CVE-2025-50172: Allocation of resources without limits or throttling in Windows DirectX allows an authorized attacke Allocation of resources without limits or throttling in Windows DirectX allows an authorized attacker to deny service over a network.

CVE-2026-85934 [HIGH] CWE-416 CVE-2026-85934: Use after free in Windows AppX Deployment Service allows an authorized attacker to elevate privilege Use after free in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.

CVE-2026-85854 [HIGH] CWE-416 CVE-2026-85854: Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges local Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-96319 [HIGH] CWE-416 CVE-2026-96319: Use after free in Windows USB Print Driver allows an authorized attacker to elevate privileges local Use after free in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-27917 [HIGH] CWE-416 CVE-2026-27917: Use after free in Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) allows an authorized atta Use after free in Windows WFP NDIS Lightweight Filter Driver (wfplwfs.sys) allows an authorized attacker to elevate privileges locally.

CVE-2026-70283 [HIGH] CWE-863 CVE-2026-70283: Incorrect authorization in Windows Win32K allows an authorized attacker to elevate privileges locall Incorrect authorization in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-83899 [HIGH] CWE-362 CVE-2026-83899: Improper privilege management in Windows Installer allows an authorized attacker to elevate privileg Improper privilege management in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-45640 [HIGH] CWE-416 CVE-2026-45640: Use after free in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges Use after free in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-96939 [HIGH] CWE-367 CVE-2026-96939: Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates allows an authorized at Time-of-check time-of-use (toctou) race condition in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.

CVE-2026-42825 [HIGH] CWE-416 CVE-2026-42825: Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges loca Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.