CVE-2026-2459

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:hitachienergy:reb500_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:hitachienergy:reb500:-:*:*:*:*:*:*:*

History

06 Apr 2026, 13:55

Type	Values Removed	Values Added
Summary		(es) Existe una vulnerabilidad en REB500 que hace que un usuario autenticado con rol de Instalador acceda y altere el contenido de directorios para los que el rol no está autorizado a hacerlo.

26 Feb 2026, 18:05

Type	Values Removed	Values Added
First Time		Hitachienergy reb500 Firmware Hitachienergy reb500 Hitachienergy
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1
CPE		cpe:2.3:o:hitachienergy:reb500_firmware:::::::: cpe:2.3:h:hitachienergy:reb500:-:::::::*
References	~~() https://publisher.hitachienergy.com/preview?DocumentID=8DBD000217&LanguageCode=en&DocumentPartId=&Action=Launch -~~	() https://publisher.hitachienergy.com/preview?DocumentID=8DBD000217&LanguageCode=en&DocumentPartId=&Action=Launch - Vendor Advisory

24 Feb 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-24 14:16

Updated : 2026-06-17 10:30

NVD link : CVE-2026-2459

Mitre link : CVE-2026-2459

CVE.ORG link : CVE-2026-2459

JSON object : View

Products Affected

hitachienergy

reb500_firmware
reb500

CWE

CWE-267

Privilege Defined With Unsafe Actions

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