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EUVD-2026-322013

fkie_cve-2026-1773

IEC 60870-5-104 used in RTU500: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.

GHSA-q2vg-xgjr-32v3

IEC 60870-5-104: Potential Denial of Service impact on reception of invalid U-format frame. Product is only affected if IEC 60870-5-104 bi-directional functionality is configured. Enabling secure communication following IEC 62351-3 does not remediate the vulnerability but mitigates the risk of exploitation.

ICSA-26-062-03 — Hitachi Energy RTU500 Product

Hitachi Energy is aware of vulnerabilities that affect RTU500 product versions listed in this document. Successful exploitation of these vulnerabilities can result in the exposure of low-value user management information and device outage. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation.

WID-SEC-W-2026-0503 — Hitachi Energy RTU500: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Hitachi Energy RTU500 ausnutzen, um Informationen offenzulegen, und um einen Denial of Service Angriff durchzuführen.