CVE-2026-2459 HIGH

CVE-2026-2459

Vendor Hitachi Energy

Product Relion REB500

Weakness CWE-267

Published February 24, 2026

Last update February 28, 2026

View on NVD All CVEs

CVSS base score

7.4/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality —

Integrity —

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 24, 2026 CVE published

February 28, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-2459 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/267.html

Related vulnerabilities

CVE-2026-2459

01Description

02Disclosure timeline

03References

04Related CVE