OTPulse

Hitachi Energy Asset Suite (Update A)

MonitorCVSS 6.5ICS-CERT ICSA-25-282-01Oct 9, 2025
Hitachi EnergyEnergy
Summary

Hitachi Energy Asset Suite versions 9.8 and earlier contain a log data vulnerability (CWE-117: improper output neutralization) that could allow injection of malicious data into operational logs. Successful exploitation could result in manipulation of content or injection of data with potential for further malicious attacks on the process control network. The vulnerability affects the performance logging functionality.

What this means
What could happen
An attacker with network access to Asset Suite could inject malicious data into operational logs, potentially altering audit trails and enabling follow-up attacks on process control systems. This could compromise the integrity of historical operational records and safety documentation.
Who's at risk
Energy sector organizations using Hitachi Energy Asset Suite for operational data logging and management should care about this vulnerability. Asset Suite is typically used in power generation, distribution, and substation automation environments for asset health monitoring and performance tracking. Version 9.8 and earlier are affected.
How it could be exploited
An attacker with network access to the Asset Suite application could exploit a log data vulnerability (CWE-117: improper output neutralization) to inject or manipulate log entries. By crafting malicious input, the attacker could write arbitrary data to logs, potentially including code or commands that could be executed if logs are subsequently processed by downstream systems.
Prerequisites
  • Network access to Asset Suite application port or interface
  • No authentication explicitly required per advisory
  • Asset Suite version 9.8 or earlier
  • Performance logging feature enabled (can be disabled as workaround)
Log injection vulnerability enables data manipulationNo authentication required for exploitationAffects operational audit trails and safety documentationNo patch currently available from vendorLow complexity exploitation
Exploitability
Unlikely to be exploited — EPSS score 0.1%
Affected products (1)
ProductAffected VersionsFix Status
Asset Suite≤ 9.8No fix yet
Remediation & Mitigation
0/5
Do now
0/3
WORKAROUNDDisable performance logging in Asset Suite until a patch becomes available
HARDENINGRestrict network access to Asset Suite to authorized engineering workstations and administrative networks only using firewall rules
HARDENINGEnsure Asset Suite is isolated from the Internet and not directly accessible from external networks
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

HOTFIXApply the Hitachi Energy security update for Asset Suite when released by the vendor
HARDENINGReview operational logs and audit trails for signs of data manipulation or injection attacks
View full CISA ICS-CERT advisory
API: /api/v1/advisories/6fc81379-8106-49a0-a845-0deb0ebd2c7d

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