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Arbitrary file read in Hitachi Energy TRO600 Series Firmware

Priority MEDIUM 43CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

Hitachi Energy TRO600 Series Firmware from 9.0.0.0 through 9.1.1.0 is affected. Missing authentication for critical functionality (CWE-306) lets an unauthenticated remote attacker read or download arbitrary files on the device, including sensitive configuration files and password data.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

TRO600 contains an arbitrary file read vulnerability. An unauthenticated attacker can exploit this vulnerability to read or download arbitrary files on the affected device, including sensitive configuration files and password data, resulting in the disclosure of sensitive information.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00247 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Hitachi EnergyTRO600 Series Firmware9.0.0.0 – 9.1.1.0—No fix listedCNA
  • TRO600 Series Firmware VendorHitachi Energy Affected 9.0.0.0 – 9.1.1.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for TRO600 Series Firmware.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-106087
  2. 2026-10-27 Alias added: GHSA-5xj2-3wq5-8chm
  3. 2026-10-28 Priority changed: MEDIUM → LOW
  4. 2026-11-04 CISA SSVC decision points changed
  5. 2026-11-04 Priority changed: LOW → MEDIUM

References

  • TI-2019-03985 ABB MicroSCADA Pro SYS600 Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
  • TI-2018-10635 Improper authentication in ICS-CERT ABB eSOMS CVSS 3.0CRITICAL 9.8
  • TI-2024-01871 Heap-based buffer overflow in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 9.8
  • TI-2026-07105 Path traversal in Hitachi Energy RTU500 series CMU firmware CVSS 3.1CRITICAL 9.1
  • TI-2019-13270 Path traversal in Relion 670 Series CVSS 3.1CRITICAL 10.0
  • TI-2026-07104 Missing authentication in Hitachi Energy RTU500 series CMU firmware CVSS 3.1CRITICAL 9.1
See all 146 →

Sources