CVE-2026-2459

HIGH

Hitachi Energy Relion REB500 Installer Role Unauthorized Directory Access

Generated titleSource: EIP title enrichment
STIX 2.1 vulnerability

Record summary

CVE-2026-2459 has a selected CVSS score of 7.4 (high).

Description

A vulnerability exists in REB500 for an authenticated user with Installer role to access and alter the contents of directories that the role is not authorized to do so.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactTotal

CISA Coordinator · SSVC 2.0.3 · Evaluated Feb 28, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Relion REB500

Browse Hitachi Energy / Relion REB500

Default status: unaffected

CVE List8.0.0.0 to ≤ 8.3.3.0affected

References

2