Vulnerability · Published Jun 24, 2025 · Assigned by Hitachi Energy
CVE-2025-2403
High 7.5
In plain English
A high-severity resource allocation without limits in Relion 670/650 and SAM600-IO from Hitachi Energy. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 68.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hitachi Energy | Relion 670/650 and SAM600-IO | 2.2.6.0 – through 2.2.6.22.2.5.62.2.4.42.2.3.72.2.2.6 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H