Advisories › Hitachi Energy › ICSA-26-302-02

Hitachi Energy TRO600 series products: 2 CVEs, High 7.5

High 7.5 Oil & gas relevant ICSA-26-302-02 · Published Oct 29, 2026

Summary

CISA reports 2 vulnerabilities in Hitachi Energy TRO600. Weakness types: Improper Restriction of Communication Channel to Intended Endpoints, Missing Authentication for Critical Function. Hitachi Energy is aware of multiple vulnerabilities that affect the TRO600 series product versions listed in this document. These vulnerabilities can be exploited for remote code execution (RCE) to carry out further attacks and disclosure of sensitive information. Highest CVSS v3 score: 7.5 (High), exploitable over the network.

What to do: Prioritize: Update to version 9.2.2.1
Why this matters for oil & gas: Hitachi Energy (RTUs, MicroSCADA, substation/pipeline power) supplies oil & gas electrical infrastructure.

At a glance

Vendor
Hitachi Energy
Products
TRO600
CVEs
CVE-2026-10756, CVE-2026-106087
Highest CVSS v3
7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Highest CVSS v4
–
Known exploited (KEV)
No CVE from this advisory is on the KEV list as of the last refresh
Sectors (per CISA)
Energy
Deployed
Worldwide
Vendor HQ
Switzerland

Vulnerabilities

CVEWeaknessCVSS v3CVSS v4KEVDescription (from advisory)
CVE-2026-10756Improper Restriction of Communication Channel to Intended Endpoints7.5–NoCVE-2026-10756
CVE-2026-106087Missing Authentication for Critical Function7.5–NoCVE-2026-106087

Affected products (4)

Vendor fixes and mitigations (from advisory)

Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.

Sources

This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.

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