Description
A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the content of directories by using the DAC protocol that the user is not authorized to do so.
Published: 2026-02-24
Score: 7.6 High
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized Directory Access and Modification via DAC Protocol
Action: Apply Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Thu, 16 Apr 2026 16:45:00 +0000

Type Values Removed Values Added
Title Insufficient Authorization Allows Low‑Privilege User to Alter Directories via DAC Protocol

Sat, 28 Feb 2026 03:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 26 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Hitachienergy reb500
Hitachienergy reb500 Firmware
CPEs cpe:2.3:h:hitachienergy:reb500:-:*:*:*:*:*:*:*
cpe:2.3:o:hitachienergy:reb500_firmware:*:*:*:*:*:*:*:*
Vendors & Products Hitachienergy reb500
Hitachienergy reb500 Firmware
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


Wed, 25 Feb 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Hitachienergy
Hitachienergy relion Reb500
Vendors & Products Hitachienergy
Hitachienergy relion Reb500

Tue, 24 Feb 2026 14:00:00 +0000

Type Values Removed Values Added
Description A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the content of directories by using the DAC protocol that the user is not authorized to do so.
Weaknesses CWE-267
References
Metrics cvssV4_0

{'score': 7.6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Hitachienergy Reb500 Reb500 Firmware Relion Reb500
cve-icon MITRE

Status: PUBLISHED

Assigner: Hitachi Energy

Published:

Updated: 2026-02-28T02:23:18.377Z

Reserved: 2026-02-13T11:08:27.300Z

Link: CVE-2026-2460

cve-icon Vulnrichment

Updated: 2026-02-28T02:23:13.406Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-24T14:16:23.647

Modified: 2026-02-26T18:04:30.317

Link: CVE-2026-2460

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T16:30:15Z

Weaknesses