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Description

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.

PUBLISHED Reserved 2026-02-02 | Published 2026-02-24 | Updated 2026-02-24 | Assigner Hitachi Energy




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-184 Incomplete List of Disallowed Inputs

Product status

Default status
unaffected

12.7.1 (custom)
affected

13.5.1 (custom)
affected

13.6.1 (custom)
affected

13.7.1 (custom)
affected

13.8.1 (custom)
affected

References

publisher.hitachienergy.com/...DocumentPartId=&Action=Launch

cve.org (CVE-2026-1773)

nvd.nist.gov (CVE-2026-1773)

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