Missing authorization in Remote Desktop Server allows an unauthorized attacker to perform spoofing over a network.

The remote Windows host is missing security update 5063880 or hot patch 5063812. It is, therefore, affected by multiple vulnerabilities

  - Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
    (CVE-2025-53766)

  - Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent     network. (CVE-2025-49751)

  - Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft     Graphics Component allows an authorized attacker to elevate privileges locally. (CVE-2025-49743)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Windows host is missing security update 5063899. It is, therefore, affected by multiple vulnerabilities

  - Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
    (CVE-2025-53766)

  - Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent     network. (CVE-2025-49751)

  - Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft     Graphics Component allows an authorized attacker to elevate privileges locally. (CVE-2025-49743)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Windows host is missing security update 5063878. It is, therefore, affected by multiple vulnerabilities

  - Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.
    (CVE-2025-53766)

  - Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent     network. (CVE-2025-49751)

  - Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft     Graphics Component allows an authorized attacker to elevate privileges locally. (CVE-2025-49743)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
249126	KB5063880: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (August 2025)	Nessus	Windows : Microsoft Bulletins	critical
249122	KB5063899: Windows 11 version 22H2 / Windows Server version 23H2 Security Update (August 2025)	Nessus	Windows : Microsoft Bulletins	critical
249117	KB5063878: Windows 11 Version 24H2 / Windows Server 2025 Security Update (August 2025)	Nessus	Windows : Microsoft Bulletins	critical

Detections

Analytics

CVE-2025-50171

critical

Tenable Plugins

critical

critical

critical