Hitachi Energy Asset Suite
View CSAF
Summary
Hitachi Energy is aware of unauthenticated servlet access vulnerabilities that affect Asset Suite product versions listed in this document. These vulnerabilities can be exploited to potentially cause confidentiality, integrity and availability impact on the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy Asset Suite are affected:
Asset Suite vers:Asset_Suite/<=9.9.0 (CVE-2026-7395, CVE-2026-11796)
CVSS
Vendor
Equipment
v3 8.1
Hitachi Energy
Asset Suite
1 Vulnerability
Missing Authentication for Critical Function
Background
Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland
Vulnerabilities
Expand All +
CVE-2026-7395
Asset Suite allows unauthenticated users to access HTTPPublishAdapterTestServlet that can be used for configuration file upload,
leading to information disclosure and integrity compromise. The HTTPPublishAdapterTestServlet is specifically meant for testing purposes to be
used in a non-production environment. Read More
1 Affected Product
Asset Suite versions 9.9.0 and prior
Product Status: known_affected
Remediations
Vendor fixUpdate or upgrade to Asset Suite 9.9.1 when available
MitigationDisable the affected servlet [2] [3] [2] HTTPPublishAdapterTestServlet is meant for testing purposes used in
non-production environment [3] Functionality of the servlets, PropertiesReloadServlet, CacheFlushServlet, MetadataCacheFlushServlet and ResourceBundleReloadServlet to be evaluated for its utility in the production environment
Additional Metrics
Relevant CWE: CWE-306 Missing Authentication for Critical Function
CVSS Version
Base Score
Base Severity
Vector String
3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
4.0
8.5
HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
View CVE Details
CVE-2026-11796
Asset Suite allows unauthenticated users to access PropertiesReloadServlet, CacheFlushServlet, MetadataCacheFlushServlet and ResourceBundleReloadServlet, which could result in denial-of-service conditions affecting application availability. These servlets are designed to perform specific functions within production environment depending on how the Asset Suite application is configured.
Read More
2 Affected Products
Asset Suite versions 9.9.0 and prior
Product Status: known_affected
Remediations
Vendor fixUpdate or upgrade to Asset Suite 9.9.1 when available
MitigationDisable the affected servlet [2] [3] [2] HTTPPublishAdapterTestServlet is meant for testing purposes used in
non-production environment [3] Functionality of the servlets, PropertiesReloadServlet, CacheFlushServlet, MetadataCacheFlushServlet and ResourceBundleReloadServlet to be evaluated for its utility in the production environment
Asset Suite versions 9.9.0 and prior
Product Status: known_affected
Remediations
Vendor fixUpdate or upgrade to Asset Suite 9.9.1 when available
MitigationDisable the affected servlet [2] [3] [2] HTTPPublishAdapterTestServlet is meant for testing purposes used in
non-production environment [3] Functionality of the servlets, PropertiesReloadServlet, CacheFlushServlet, MetadataCacheFlushServlet and ResourceBundleReloadServlet to be evaluated for its utility in the production environment
Additional Metrics
Relevant CWE: CWE-306 Missing Authentication for Critical Function
CVSS Version
Base Score
Base Severity
Vector String
3.1
4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
4.0
5.1
MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
View CVE Details
Acknowledgments
EDF reported these vulnerabilities to CISA.
Notice
The information in this document is subject to change without notice and should not be construed as a commitment by Hitachi Energy. Hitachi Energy provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall Hitachi Energy or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if Hitachi Energy or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from Hitachi Energy and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with t
heir respective owners.
Support
For additional information and support please contact your product provider or Hitachi Energy service organization. For contact information, see
https://www.hitachienergy.com/contact-us/ for Hitachi Energy contact-centers.
General Mitigation Factors
Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Proper password policies and processes should be followed. Additional information on Industrial Control Systems Cybersecurity Best Practices can be found in the Hitachi Energy ?Industrial Control Systems Cybersecurity Best Practices? Cybersecurity Notification.
SSVC
SSVCv2/E:N/A:N/2026-09-28T14:32:19Z/
Legal Notice and Terms of Use
This product is provided subject to this Notification (
https://www.cisa.gov/notification) and this Privacy & Use policy (
https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.
Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices
on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies
for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
Advisory Conversion Disclaimer
This ICSA is a verbatim republication of Hitachi Energy PSIRT 8DBD000254 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Hitachi Energy PSIRT directly for any questions regarding this advisory.
Revision History
Initial Release Date: 2026-09-29
Date
Revision
Summary
2026-09-29
1
Initial public release
2026-10-06
2
Initial CISA Republication of Hitachi Energy PSIRT 8DBD000254 advisory
Legal Notice and Terms of Use
https://www.cisa.gov/news-events/ics-advisories/icsa-26-279-03
2026-10-06 12:00 UTC
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