ADV200013 Microsoft Guidance for Addressing Spoofing Vulnerability in DNS Resolver

[admin]

In the Security Updates table, added Windows Server 2022, version 23H2, Windows Server 2025, and Windows Server 2025 (Server Core installation) as these versions of Windows Server are also affected by this vulnerability. Customers running these versions should configure Windows DNS servers to have UDP buffer size of 1221, as detailed in the Workaround, to be protected from this vulnerability.

Source: https://msrc.microsoft.com/update-guide ... /ADV200013