CVE-2025-21300

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Jan 14, 2025
CWE ID 400

Summary

CVE-2025-21300 is a newly disclosed Denial of Service (DoS) vulnerability affecting the upnphost.dll component in certain Windows versions. An attacker can exploit this flaw by sending specially crafted packets to a targeted system, resulting in a denial of service condition. The vulnerability is reportedly exploitable remotely, posing a significant threat to organizations and individuals using the affected Windows systems. Microsoft has released a patch to address the issue, and it is strongly recommended that users install the update as soon as possible to mitigate the risk.

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Affected Products

  • Microsoft Windows 10
  • Microsoft Windows 11
  • Microsoft Windows Server 2008
  • Windows Server 2022

Affected Vendors

  • Microsoft