Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-20861 [HIGH] CWE-362 CVE-2026-20861: 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-2026-20867 [HIGH] CWE-362 CVE-2026-20867: 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-2026-20866 [HIGH] CWE-362 CVE-2026-20866: 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-2026-20874 [HIGH] CWE-362 CVE-2026-20874: 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-2026-20873 [HIGH] CWE-362 CVE-2026-20873: 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-2026-85872 [HIGH] CWE-416 CVE-2026-85872: Use after free in Windows Storage VSP Driver allows an authorized attacker to elevate privileges loc Use after free in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-27924 [HIGH] CWE-416 CVE-2026-27924: Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

CVE-2024-38019 [HIGH] CWE-190 CVE-2024-38019: Microsoft Windows Performance Data Helper Library Remote Code Execution Vulnerability Microsoft Windows Performance Data Helper Library Remote Code Execution Vulnerability

CVE-2026-85376 [HIGH] CWE-1390 CVE-2026-85376: Weak authentication in Windows Print Spooler Components allows an authorized attacker to elevate pri Weak authentication in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.

CVE-2026-88073 [HIGH] CWE-416 CVE-2026-88073: Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locall Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-69392 [HIGH] CWE-416 CVE-2026-69392: Use after free in Windows Shell allows an authorized attacker to elevate privileges locally. Use after free in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-96317 [HIGH] CWE-416 CVE-2026-96317: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-88080 [HIGH] CWE-416 CVE-2026-88080: Use after free in Windows Installer allows an authorized attacker to elevate privileges locally. Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-85334 [HIGH] CWE-125 CVE-2026-85334: Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthorized attacker to discl Out-of-bounds read in Windows Message Queuing Queue Manager allows an unauthorized attacker to disclose information over a network.

CVE-2026-26181 [HIGH] CWE-362 CVE-2026-26181: Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privilege Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

CVE-2026-103558 [HIGH] CWE-833 CVE-2026-103558: Deadlock in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny Deadlock in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to deny service over a network.

CVE-2026-88101 [HIGH] CWE-1390 CVE-2026-88101: Weak authentication in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate Weak authentication in Microsoft Input Method Editor (IME) allows an authorized attacker to elevate privileges locally.

CVE-2026-77896 [HIGH] CWE-190 CVE-2026-77896: Integer overflow or wraparound in Remote Desktop Client allows an unauthorized attacker to deny serv Integer overflow or wraparound in Remote Desktop Client allows an unauthorized attacker to deny service over a network.

CVE-2025-60704 [HIGH] CWE-325 CVE-2025-60704: Missing cryptographic step in Windows Kerberos allows an unauthorized attacker to elevate privileges Missing cryptographic step in Windows Kerberos allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-83739 [HIGH] CWE-416 CVE-2026-83739: Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an Use after free in Windows Bluetooth Service allows an unauthorized attacker to execute code over an adjacent network.