Summary
Hitachi Energy is aware of vulnerabilities that affect RTU500 product versions listed in this document. If exploited, these vulnerabilities primarily impact product availability, with potential secondary impacts on confidentiality and integrity. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation.
Vulnerabilities 7
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High 7.5CVE-2025-69421 Public exploit
NULL Pointer Dereference in PKCS12_item_decrypt_d2i_ex function
Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer dereference in the PKCS12_item_decrypt_d2i_ex() function. Impact summary: A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processi…
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Medium 6.9
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is n…
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Medium 6.9
IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable for a NULL pointer dereferencing, if a specially cra…
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Medium 4.0
libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content.
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Medium 4.0
libexpat before 2.7.5 allows an infinite loop while parsing DTD content.
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Low 2.9
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
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Low 2.9
libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier ouf-of-mem…
Revision history
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#5
CISA Republication update based on Hitachi Energy PSIRT 8DBD000252 advisory
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#4
Updated fixed version 12.7.8
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#3
CISA Republication - Initial CISA Republication of Hitachi Energy PSIRT 8DBD000252 advisory
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#2
Update to affected version range for 12.7.x series
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#1
Initial public release
References
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[1] Hitachi Energy Notification for Industrial Control Systems Cybersecurity Best Practices
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000235&LanguageCode=en&DocumentPartId=&Action=Launch
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Multiple Vulnerabilities in Hitachi Energy RTU500 Product
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000252&LanguageCode=en&DocumentPartId=&Action=launch
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ICS Advisory ICSA-26-155-04 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-26-155-04
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Recommended Practices
https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
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Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b