CVE-2025-2403

HIGH

Hitachi Energy Relion 670/650 and SAM600-IO - Denial of Service via Network Traffic Prioritization

Title source: llm
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0032
EPSS Percentile 23.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (5)
Hitachi Energy/Relion 670/650 and SAM600-IO 2.2.2.6
Hitachi Energy/Relion 670/650 and SAM600-IO 2.2.3.7
Hitachi Energy/Relion 670/650 and SAM600-IO 2.2.4.4
Hitachi Energy/Relion 670/650 and SAM600-IO 2.2.5.6
Hitachi Energy/Relion 670/650 and SAM600-IO 2.2.6.0 - 2.2.6.2
Published Jun 24, 2025
Tracked Since Feb 18, 2026