CVE-2026-2459
Received
Received - Intake
Unauthorized Directory Access in REB500 via Installer Role Abuse
Publication date: 2026-02-24
Last updated on: 2026-04-06
Assigner: Hitachi Energy
Description
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 Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| hitachienergy | reb500_firmware | to 8.3.3.0 (inc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-267 | A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in REB500 and allows an authenticated user with the Installer role to access and modify the contents of directories that they are not authorized to access.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized access and alteration of directory contents by users with the Installer role, potentially compromising the integrity and confidentiality of data within those directories.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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