Microsoft Windows 10 21H2 vulnerabilities

CVE-2026-50427 [HIGH] CWE-362 CVE-2026-50427: Use after free in Content Delivery Manager allows an authorized attacker to elevate privileges local Use after free in Content Delivery Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-50689 [HIGH] CWE-362 CVE-2026-50689: Use after free in Windows Clipboard Server allows an authorized attacker to elevate privileges local Use after free in Windows Clipboard Server allows an authorized attacker to elevate privileges locally.

CVE-2026-85353 [HIGH] CWE-125 CVE-2026-85353: Out-of-bounds read in Windows Print Spooler Components allows an unauthorized attacker to disclose i Out-of-bounds read in Windows Print Spooler Components allows an unauthorized attacker to disclose information over a network.

CVE-2025-64661 [HIGH] CWE-362 CVE-2025-64661: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Shell allows an authorized attacker to elevate privileges locally.

CVE-2026-32160 [HIGH] CWE-362 CVE-2026-32160: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-42978 [HIGH] CWE-362 CVE-2026-42978: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-32089 [HIGH] CWE-362 CVE-2026-32089: Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges lo Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.

CVE-2026-87712 [HIGH] CWE-416 CVE-2026-87712: Use after free in Windows Quality of Service (QoS) Packet Scheduler allows an authorized attacker to Use after free in Windows Quality of Service (QoS) Packet Scheduler allows an authorized attacker to elevate privileges locally.

CVE-2026-27916 [HIGH] CWE-416 CVE-2026-27916: Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker t Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

CVE-2026-27923 [HIGH] CWE-416 CVE-2026-27923: 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-2026-103568 [HIGH] CWE-122 CVE-2026-103568: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Providers allows an authorized attacker to elevate privileges locally.

CVE-2026-58526 [HIGH] CWE-362 CVE-2026-58526: Use after free in Windows Storage allows an authorized attacker to elevate privileges locally. Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-69799 [HIGH] CWE-362 CVE-2026-69799: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Hello allows an authorized attacker to elevate privileges locally.

CVE-2026-58628 [HIGH] CWE-362 CVE-2026-58628: 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 Networking allows an authorized attacker to elevate privileges locally.

CVE-2026-32159 [HIGH] CWE-362 CVE-2026-32159: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-32158 [HIGH] CWE-362 CVE-2026-32158: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-32153 [HIGH] CWE-362 CVE-2026-32153: Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges local Use after free in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2026-20930 [HIGH] CWE-362 CVE-2026-20930: 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-2026-42979 [HIGH] CWE-362 CVE-2026-42979: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-42977 [HIGH] CWE-362 CVE-2026-42977: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.