Hitachi Energy RTU500 Product

View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect RTU500 product versions listed in this document. These vulnerabilities if exploited can have impact on confidentiality, integrity and availability of the product. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation.

Summary from CISA Advisories.

Vulnerabilities in this story

Severity and exploitation facts from NVD, FIRST, and CISA.

• CVE-2026-11856Critical 9.8EPSS 0.7%
• CVE-2026-9079Critical 9.8EPSS 0.6%
• CVE-2026-8927Critical 9.1EPSS 0.5%
• CVE-2026-28388High 7.5EPSS 0.9%
• CVE-2026-6276High 7.5EPSS 0.3%
• CVE-2026-6732High 7.5EPSS 0.9%
• CVE-2026-8932High 7.5EPSS 0.4%
• CVE-2026-6653High 7.0EPSS 0.4%
• CVE-2026-17539Medium 5.9EPSS 0.3%

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