Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-83722 [HIGH] CWE-362 CVE-2026-83722: Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker t Use after free in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to elevate privileges locally.

CVE-2026-85328 [HIGH] CWE-1390 CVE-2026-85328: Weak authentication in Windows Projected File System allows an authorized attacker to elevate privil Weak authentication in Windows Projected File System allows an authorized attacker to elevate privileges locally.

CVE-2026-96949 [HIGH] CWE-362 CVE-2026-96949: 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-2026-97787 [HIGH] CWE-362 CVE-2026-97787: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

CVE-2026-96932 [HIGH] CWE-362 CVE-2026-96932: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Embedded Mode Service allows an authorized attacker to elevate privileges locally.

CVE-2026-108396 [HIGH] CWE-367 CVE-2026-108396: Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows a Time-of-check time-of-use (toctou) race condition in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.

CVE-2026-42912 [HIGH] CWE-362 CVE-2026-42912: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-34345 [HIGH] CWE-362 CVE-2026-34345: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-68824 [HIGH] CWE-362 CVE-2026-68824: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected User Experiences and Telemetry allows an authorized attacker to elevate privileges locally.

CVE-2026-69466 [HIGH] CWE-367 CVE-2026-69466: Time-of-check time-of-use (toctou) race condition in Windows Kernel allows an authorized attacker to Time-of-check time-of-use (toctou) race condition in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-69319 [HIGH] CWE-362 CVE-2026-69319: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Video Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-62727 [HIGH] CWE-362 CVE-2026-62727: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62734 [HIGH] CWE-362 CVE-2026-62734: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62748 [HIGH] CWE-362 CVE-2026-62748: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-59122 [HIGH] CWE-362 CVE-2026-59122: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-59126 [HIGH] CWE-362 CVE-2026-59126: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Event Logging Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62729 [HIGH] CWE-362 CVE-2026-62729: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62908 [HIGH] CWE-362 CVE-2026-62908: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine allows an authorized attacker to elevate privileges locally.

CVE-2026-48572 [HIGH] CWE-362 CVE-2026-48572: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows App Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-35418 [HIGH] CWE-367 CVE-2026-35418: 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.