CVE-2026-2459

HIGH

Hitachi Energy REB500 Firmware < 8.3.3.1 - Authenticated Directory Access and Modification

Title source: llm
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 8.1
EPSS 0.0033
EPSS Percentile 24.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-267
Status published
Products (2)
Hitachi Energy/Relion REB500 8.0.0.0 - 8.3.3.0
hitachienergy/reb500_firmware < 8.3.3.1
Published Feb 24, 2026
Tracked Since Feb 24, 2026