CVE-2025-49716: 
vulnerability analysis and mitigation

A vulnerability identified as CVE-2025-49716 was discovered in Windows Netlogon, first reported on July 8, 2025. The vulnerability allows an unauthorized attacker to perform a denial of service attack over a network. Microsoft Corporation, as the affected vendor, officially acknowledged and documented this security issue (Microsoft Advisory).

The vulnerability is classified as an Uncontrolled Resource Consumption issue (CWE-400). Microsoft has assigned it a CVSS v3.1 base score of 7.5 (HIGH) with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. This indicates that the vulnerability can be exploited over the network, requires low attack complexity, needs no privileges or user interaction, and can result in high availability impact (NVD).

The vulnerability affects multiple versions of Windows Server, including Server 2008 R2 SP1, Server 2012/R2, Server 2016 (versions up to 10.0.14393.8246), Server 2019 (versions up to 10.0.17763.7558), Server 2022 (versions up to 10.0.20348.3932), and Server 2022 23H2 (versions up to 10.0.25398.1732). When exploited, it can lead to denial of service, potentially disrupting network services (NVD).

Microsoft has released security updates as part of their July 2025 security updates to address this vulnerability. The updates are available through the standard Windows Update channels and the Microsoft Update Catalog (Microsoft Advisory).