CVE-2025-21207
Published: 14 January 2025
Summary
CVE-2025-21207 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked in the top 24.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SC-6 (Resource Availability).
Deeper analysis
CVE-2025-21207 is a denial-of-service vulnerability in the Windows Connected Devices Platform Service (Cdpsvc). It carries a CVSS 3.1 base score of 7.5 and is associated with CWE-400, indicating uncontrolled resource consumption that can be triggered over the network without authentication or user interaction.
An unauthenticated remote attacker can send specially crafted network traffic to an affected system and exhaust resources in Cdpsvc, resulting in a denial-of-service condition that disrupts availability while leaving confidentiality and integrity unaffected.
Microsoft has published an advisory for CVE-2025-21207 at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21207 that addresses the issue.
The EPSS score for this CVE rose from a low baseline to a peak of 0.0332 on 2026-02-03 before receding to its current value of 0.0084, indicating that exploitation interest increased after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-2277
Vulnerability details
Windows Connected Devices Platform Service (Cdpsvc) Denial of Service Vulnerability
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct remote exploitation of the CDPsvc vulnerability to trigger resource exhaustion or crash, matching Endpoint DoS via Application or System Exploitation.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly remediates the uncontrolled resource consumption flaw in CDPsvc through timely patching or vendor-recommended mitigations.
Implements denial-of-service protections at network entry points to block or limit remote resource exhaustion exploits against CDPsvc.
Protects system resource availability by allocating limits and dedicated resources to prevent excessive consumption by unauthenticated remote attackers targeting CDPsvc.