{"affected":[{"affectedData":[{"defaultStatus":"unaffected","product":"Relion 670/650 and SAM600-IO","vendor":"Hitachi Energy","versions":[{"lessThanOrEqual":"2.2.6.2","status":"affected","version":"2.2.6.0","versionType":"custom"},{"status":"affected","version":"2.2.5.6","versionType":"custom"},{"status":"affected","version":"2.2.4.4","versionType":"custom"},{"status":"affected","version":"2.2.3.7","versionType":"custom"},{"status":"affected","version":"2.2.2.6","versionType":"custom"}]}],"source":"cybersecurity@hitachienergy.com"}],"cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Existe una vulnerabilidad de denegación de servicio debido a una priorización incorrecta del tráfico de red sobre el mecanismo de protección en los dispositivos de las series Relion 670/650 y SAM600-IO que, si se explota, podría provocar que funciones críticas como LDCM (módulo de comunicación de distancia de línea) funcionen mal."}],"id":"CVE-2025-2403","lastModified":"2026-06-17T09:06:57.753","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"source":"cybersecurity@hitachienergy.com","type":"Secondary"}],"cvssMetricV40":[{"cvssData":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","availabilityRequirement":"NOT_DEFINED","baseScore":8.7,"baseSeverity":"HIGH","confidentialityRequirement":"NOT_DEFINED","exploitMaturity":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"source":"cybersecurity@hitachienergy.com","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2025-2403","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-06-24T15:24:33.228316Z","version":"2.0.3"}}]},"published":"2025-06-24T12:15:20.863","references":[{"source":"cybersecurity@hitachienergy.com","url":"https://publisher.hitachienergy.com/preview?DocumentID=8DBD000216&LanguageCode=en&DocumentPartId=&Action=Launch"}],"sourceIdentifier":"cybersecurity@hitachienergy.com","vulnStatus":"Deferred","weaknesses":[{"description":[{"lang":"en","value":"CWE-770"}],"source":"cybersecurity@hitachienergy.com","type":"Secondary"}]}