Microsoft Windows 11 24H2 vulnerabilities

CVE-2025-21409 [HIGH] CWE-122 CVE-2025-21409: Windows Telephony Service Remote Code Execution Vulnerability Windows Telephony Service Remote Code Execution Vulnerability

CVE-2025-21339 [HIGH] CWE-122 CVE-2025-21339: Windows Telephony Service Remote Code Execution Vulnerability Windows Telephony Service Remote Code Execution Vulnerability

CVE-2025-21411 [HIGH] CWE-122 CVE-2025-21411: Windows Telephony Service Remote Code Execution Vulnerability Windows Telephony Service Remote Code Execution Vulnerability

CVE-2025-21413 [HIGH] CWE-122 CVE-2025-21413: Windows Telephony Service Remote Code Execution Vulnerability Windows Telephony Service Remote Code Execution Vulnerability

CVE-2025-48817 [HIGH] CWE-23 CVE-2025-48817: Relative path traversal in Remote Desktop Client allows an unauthorized attacker to execute code ove Relative path traversal in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVE-2026-20820 [HIGH] CWE-122 CVE-2026-20820: Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-59516 [HIGH] CWE-73 CVE-2025-59516: Missing authentication for critical function in Windows Storage VSP Driver allows an authorized atta Missing authentication for critical function in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-62454 [HIGH] CWE-122 CVE-2025-62454: Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker t Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-54916 [HIGH] CWE-121 CVE-2025-54916: Stack-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. Stack-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

CVE-2026-20856 [HIGH] CWE-20 CVE-2026-20856: Improper input validation in Windows Server Update Service allows an unauthorized attacker to execut Improper input validation in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

CVE-2026-50460 [HIGH] CWE-362 CVE-2026-50460: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.

CVE-2025-21277 [HIGH] CWE-126 CVE-2025-21277: Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability Microsoft Message Queuing (MSMQ) Denial of Service Vulnerability

CVE-2026-20921 [HIGH] CWE-362 CVE-2026-20921: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVE-2025-58726 [HIGH] CWE-284 CVE-2025-58726: Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges ov Improper access control in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVE-2026-20926 [HIGH] CWE-362 CVE-2026-20926: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVE-2026-20919 [HIGH] CWE-362 CVE-2026-20919: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVE-2026-20934 [HIGH] CWE-362 CVE-2026-20934: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

CVE-2026-58531 [HIGH] CWE-362 CVE-2026-58531: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB allows an authorized attacker to elevate privileges over a network.

CVE-2024-43624 [HIGH] CWE-822 CVE-2024-43624: Windows Hyper-V Shared Virtual Disk Elevation of Privilege Vulnerability Windows Hyper-V Shared Virtual Disk Elevation of Privilege Vulnerability

CVE-2025-59199 [HIGH] CWE-284 CVE-2025-59199: Improper access control in Software Protection Platform (SPP) allows an authorized attacker to eleva Improper access control in Software Protection Platform (SPP) allows an authorized attacker to elevate privileges locally.