Resource exhaustion in Hitachi Energy Relion 670/650 And Sam600-Io
CVE-2025-2403
A denial-of-service vulnerability due to improper prioritization of network traffic over protection mechanism exists in Relion 670/650 and SAM600-IO series device that if exploited could potentially cause critical functions like LDCM (Line Distance Communication Module) to malfunction.
EPSS: 0.003 (23.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Hitachi Energy Relion 670/650 And Sam600-io — versions 2.2.6.0, 2.2.5.6, 2.2.4.4
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-2403?
- CVE-2025-2403 is a high-severity vulnerability in Hitachi Energy Relion 670/650 And Sam600-Io, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-06-24.
- How severe is CVE-2025-2403?
- High severity. CVSS v3 base score is 7.5 out of 10.