CVE-2026-8067
Medium
Description
An improper authorization vulnerability in the end-of-life versions of RTU500’s web application allows an authenticated user to trigger the RTU500 to reboot through the reset endpoint. Successful exploitation could cause temporary device unavailability and disruption of its intended operation.
SeverityMedium
CVSS6.5
Exploit probability—
ProductRTU500 series CMU firmware
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- Hitachi Energy RTU500 series CMU firmware12.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Hitachi Energy RTU500 series CMU firmware | 9.0 ≤ v < 12.0 | 12.0 |
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