OTPulse

Hitachi Energy Service Suite

Act NowCVSS 9.8ICS-CERT ICSA-25-133-01May 13, 2025
Hitachi EnergyEnergy
Summary

Hitachi Energy Service Suite versions 9.8.1.3 and earlier contain multiple vulnerabilities including memory corruption (buffer overflow/underflow), integer overflow, HTTP request smuggling, and denial of service flaws. These allow unauthenticated remote attackers to compromise confidentiality, integrity, and availability of the affected system. The Service Suite is a critical management and control interface for energy infrastructure devices.

What this means
What could happen
An attacker could gain remote access to Hitachi Energy Service Suite, potentially compromising control and visibility over critical energy infrastructure systems. This could allow manipulation of system configurations, data theft, or operational disruption.
Who's at risk
Energy utility operators, specifically those running Hitachi Energy Service Suite for SCADA management, control system monitoring, or grid operations support. This affects both generation, transmission, and distribution control centers relying on Service Suite for operational awareness and device management.
How it could be exploited
An attacker with network access to the Service Suite (port not specified in advisory) could send crafted network packets exploiting memory corruption, integer overflow, or request smuggling vulnerabilities. This could allow remote code execution on the Service Suite server, enabling the attacker to control connected devices and systems.
Prerequisites
  • Network access to Hitachi Energy Service Suite
  • No authentication required (based on CVSS 9.8 base metric)
  • Service Suite version 9.8.1.3 or earlier
remotely exploitableno authentication requiredhigh EPSS score (68.2%)critical severitymultiple vulnerability types (memory corruption, integer overflow, request smuggling)
Exploitability
Likely to be exploited — EPSS score 68.2%
Public Proof-of-Concept (PoC) on GitHub (9 repositories)
Affected products (1)
ProductAffected VersionsFix Status
Service Suite≤ 9.8.1.39.8.1.4
Remediation & Mitigation
0/5
Do now
0/3
HARDENINGIsolate Service Suite from direct internet connectivity and external networks using a firewall with minimal exposed ports
WORKAROUNDRestrict network access to Service Suite to only authorized engineering and operations personnel from known IP addresses
HARDENINGImplement proper password policies and enforce strong credentials for Service Suite access
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

HOTFIXUpdate Hitachi Energy Service Suite to version 9.8.1.4 or later
HARDENINGImplement network segmentation to separate Service Suite from other business networks
View full CISA ICS-CERT advisory
API: /api/v1/advisories/371261b5-b44f-417e-82c6-668d3014802d

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