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HIGH · 8.1

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.

Vulnerability 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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
HitachienergyReb500 Firmware<= 8.3.3.0
HitachienergyReb500-

Related Weaknesses (CWE)

CWE-267

References

FAQ

What is CVE-2026-2459?

CVE-2026-2459 is a vulnerability with a CVSS score of 8.1 (HIGH). 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.

How severe is CVE-2026-2459?

CVE-2026-2459 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-2459?

Check the references section above for vendor advisories and patch information. Affected products include: Hitachienergy Reb500 Firmware, Hitachienergy Reb500.