CVE-2026-2459 PUBLISHED

Assigner: Hitachi Energy
Reserved: 13.02.2026 Published: 24.02.2026 Updated: 24.02.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	Hitachi Energy
Product	Relion REB500
Versions	Default: unaffected affected from 8.0.0.0 to 8.3.3.0 (incl.)

References

https://publisher.hitachienergy.com/preview?DocumentID=8DBD000217&LanguageCode=en&DocumentPartId=&Action=Launch

Problem Types

CWE-267 Privilege Defined with Unsafe Actions CWE

Impacts

CAPEC-165 File Manipulation