CVE-2025-21347

Summary

CVE-2025-21347 is a newly disclosed Denial of Service (DoS) vulnerability affecting Microsoft's Windows Deployment Services. This issue allows an attacker to send specially crafted packets to a targeted system, causing it to enter an infinite loop and become unresponsive. As a result, the affected server is rendered unable to respond to legitimate requests, resulting in a denial of service condition. This vulnerability poses a significant risk to organizations that rely on Windows Deployment Services for their imaging and deployment infrastructure, as it can be easily exploited over the network without requiring authentication. Organizations are urged to apply the available patches as soon as possible to mitigate this risk.

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