Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an unauthorized attacker to execute code over a network.

PT - Windows OS Coverage

The remote Windows host is missing security update 5120233 or hotpatch 5120228. It is, therefore, affected by multiple vulnerabilities

  - Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
    (CVE-2026-62815)

  - Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
    (CVE-2026-62878)

  - Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a     network. (CVE-2026-62893)

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 5120238. It is, therefore, affected by multiple vulnerabilities

  - Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
    (CVE-2026-62878)

  - Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a     network. (CVE-2026-62893)

  - Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code     over a network. (CVE-2026-65791)

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 5120418. It is, therefore, affected by multiple vulnerabilities

  - Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
    (CVE-2026-62878)

  - Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a     network. (CVE-2026-62893)

  - Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code     over a network. (CVE-2026-65791)

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 5120242 or hotpatch 5120229. It is, therefore, affected by multiple vulnerabilities

  - Use after free in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
    (CVE-2026-62815)

  - Stack-based buffer overflow in Windows DNS allows an unauthorized attacker to execute code over a network.
    (CVE-2026-62878)

  - Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a     network. (CVE-2026-62893)

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	Type	Severity
334611	KB5120233: Windows Server 2025 Security Update (August 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical
334607	KB5120238: Windows 10 version 1809 / Windows Server 2019 Security Update (August 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical
334605	KB5120418: Windows 10 Version 1607 / Windows Server 2016 Security Update (August 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical
334604	KB5120242: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (August 2026)	Nessus	Windows : Microsoft Bulletins	Local	critical

Detections

Analytics

CVE-2026-62820

high

Tenable Plugins

Coming Soon

critical

critical

critical

critical