Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-49788 [HIGH] CWE-770 CVE-2026-49788: Allocation of resources without limits or throttling in HTTP/2 allows an unauthorized attacker to de Allocation of resources without limits or throttling in HTTP/2 allows an unauthorized attacker to deny service over a network.

CVE-2026-50470 [HIGH] CWE-125 CVE-2026-50470: Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose information over a network.

CVE-2026-50415 [HIGH] CWE-200 CVE-2026-50415: Exposure of sensitive information to an unauthorized actor in Windows Media allows an unauthorized a Exposure of sensitive information to an unauthorized actor in Windows Media allows an unauthorized attacker to disclose information over a network.

CVE-2025-24052 [HIGH] CWE-121 CVE-2025-24052: Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver has been removed in the October cumulative update. Fax modem hardware dependent on this specific driver will no longer work on Window

CVE-2026-20846 [HIGH] CWE-126 CVE-2026-20846: Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network. Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network.

CVE-2026-33096 [HIGH] CWE-125 CVE-2026-33096: Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a networ Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

CVE-2026-20938 [HIGH] CWE-822 CVE-2026-20938: Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an autho Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVE-2025-60707 [HIGH] CWE-416 CVE-2025-60707: Use after free in Multimedia Class Scheduler Service (MMCSS) allows an authorized attacker to elevat Use after free in Multimedia Class Scheduler Service (MMCSS) allows an authorized attacker to elevate privileges locally.

CVE-2025-60703 [HIGH] CWE-822 CVE-2025-60703: Untrusted pointer dereference in Windows Remote Desktop allows an authorized attacker to elevate pri Untrusted pointer dereference in Windows Remote Desktop allows an authorized attacker to elevate privileges locally.

CVE-2026-49176 [HIGH] CWE-59 CVE-2026-49176: Improper privilege management in Windows WalletService allows an authorized attacker to elevate priv Improper privilege management in Windows WalletService allows an authorized attacker to elevate privileges locally.

CVE-2025-58728 [HIGH] CWE-416 CVE-2025-58728: Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges loca Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.

CVE-2025-50175 [HIGH] CWE-416 CVE-2025-50175: Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally. Use after free in Windows Digital Media allows an authorized attacker to elevate privileges locally.

CVE-2026-50462 [HIGH] CWE-73 CVE-2026-50462: External control of file name or path in Windows Ancillary Function Driver for WinSock allows an aut External control of file name or path in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2025-60720 [HIGH] CWE-126 CVE-2025-60720: Buffer over-read in Windows TDX.sys allows an authorized attacker to elevate privileges locally. Buffer over-read in Windows TDX.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-20923 [HIGH] CWE-416 CVE-2026-20923: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-50377 [HIGH] CWE-125 CVE-2026-50377: Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-20865 [HIGH] CWE-416 CVE-2026-20865: Use after free in Windows Management Services allows an authorized attacker to elevate privileges lo Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

CVE-2026-25176 [HIGH] CWE-284 CVE-2026-25176: Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attack Improper access control in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-20809 [HIGH] CWE-122 CVE-2026-20809: Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized atta Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally.

CVE-2026-50402 [HIGH] CWE-126 CVE-2026-50402: Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate Incorrect conversion between numeric types in Windows NTFS allows an authorized attacker to elevate privileges locally.