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CVE-2026-8067

MEDIUM
6.5
CVSS Score
Published: September 29, 2026 at 09:33 AM UTC
Updated: September 29, 2026 at 09:39 PM UTC
1 product affected across 1 vendorRTU500

Using RTU500 series CMU firmware by Hitachi Energy?

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

An improper authorization vulnerability in the 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

RTU500· Hitachi Energy
60%
9.0 ≤ v < 12.09.0
Affected range stops below 12.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000251&LanguageCode=en&DocumentPartId=&Action=Launch

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMHitachi Energy
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-862

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