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Hitachi Energy Asset Suite (Update A)

Monitor6.5ICS-CERT ICSA-25-282-01Oct 9, 2025
Summary

Hitachi Energy Asset Suite versions 9.8 and earlier contain a log data vulnerability (CWE-117: improper output neutralization for logs) that allows injection or manipulation of logged data. Successful exploitation could result in data injection or content manipulation with potential for carrying out further malicious attacks. The vulnerability exists in the performance logging functionality. Currently, no vendor patch is available.

What this means
What could happen
An attacker with network access to Asset Suite could inject or modify log data, potentially embedding commands or falsified operational records that could be processed by downstream systems or used to mask malicious activity in critical infrastructure.
Who's at risk
Energy utilities and operators using Hitachi Energy Asset Suite (version 9.8 or earlier) for asset monitoring and management should prioritize this issue. This affects organizations relying on Asset Suite for logging and reporting of critical infrastructure operations.
How it could be exploited
An attacker with network access to the Asset Suite system sends specially crafted input to the performance logging functionality. The vulnerable logging mechanism fails to properly validate or sanitize the data, allowing the attacker to inject or manipulate log entries. These malicious log entries could then be used to trigger further attacks against connected systems or operations.
Prerequisites
  • Network access to Asset Suite (port/service not specified in advisory)
  • Performance logging must be enabled (default configuration assumed)
  • No authentication requirement mentioned—assumes unauthenticated or default credentials
Remotely exploitableLog data manipulation enables further attacksNo patch currently availableLow EPSS score but actively reported
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (1)
ProductAffected VersionsFix Status
Asset Suite≤ 9.8No fix yet
Remediation & Mitigation
0/5
Do now
0/1
WORKAROUNDDisable performance logging in Asset Suite immediately as a compensating control
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXApply the Hitachi Energy firmware/software update when available
Long-term hardening
0/3
HARDENINGEnsure Asset Suite is behind a firewall with minimal exposed ports; do not connect directly to the Internet
HARDENINGIsolate Asset Suite from business networks using network segmentation
HARDENINGRestrict network access to Asset Suite to authorized engineering workstations and management stations only
View full CISA ICS-CERT advisory
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