Denial-of-Service Vulnerability in Hitachi Energy Relion and SAM600-IO Series Devices
CVE-2025-2403

8.7HIGH

Key Information:

Vendor

Hitachi
Status
Relion 670/650 And Sam600-io
Vendor
CVE Published:
24 June 2025

What is CVE-2025-2403?

A denial-of-service vulnerability in Hitachi Energy's Relion 670/650 and SAM600-IO series devices could lead to disruptions in critical functionalities. This vulnerability arises from improper prioritization of network traffic over protective measures. Exploitation of this issue may cause the Line Distance Communication Module (LDCM) to malfunction, potentially affecting the reliability and performance of critical systems.

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Deploy the Patch

Affected Version(s)

Relion 670/650 and SAM600-IO 2.2.6.0 <= 2.2.6.2

Relion 670/650 and SAM600-IO 2.2.5.6

Relion 670/650 and SAM600-IO 2.2.4.4

References

https://publisher.hitachienergy.com/preview?DocumentID=8D...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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