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.

INFO

Published Date :

2026-02-24T13:13:17.990Z

Last Modified :

2026-02-28T02:20:00.192Z

Source :

Hitachi Energy
AFFECTED PRODUCTS

The following products are affected by CVE-2026-1773 vulnerability.

Vendors Products
Hitachienergy
  • Rtu500 Firmware
  • Rtu520
  • Rtu520 Firmware
  • Rtu530
  • Rtu530 Firmware
  • Rtu540
  • Rtu540 Firmware
  • Rtu560
  • Rtu560 Firmware
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-1773.

URL Resource
https://publisher.hitachienergy.com/preview?DocumentID=8DBD000237&LanguageCode=en&DocumentPartId=&Action=Launch cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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SS Confidentiality
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact