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CVE-2026-1773

Hitachi Energy / RTU500 series CMU firmware PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Hitachi Energy / RTU500 series CMU firmwareaffected 12.7.1 through 12.7.7; affected 13.5.1 through 13.5.4; affected 13.6.1 through 13.6.2; affected 13.7.1 through 13.7.7; affected 13.8.1

CWE

CWE-184

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.