What’s Vulnerable › Vulnerabilities

CVE-2022-2502

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-26 · updated 2026-06-17
• Weakness: CWE-20

Description

A vulnerability exists in the HCI IEC 60870-5-104 function included in certain versions of the RTU500 series product. The vulnerability can only be exploited, if the HCI 60870-5-104 is configured with support for IEC 62351-5 and the CMU contains the license feature ‘Advanced security’ which must be ordered separately. If these preconditions are fulfilled, an attacker could exploit the vulnerability by sending a specially crafted message to the RTU500, causing the targeted RTU500 CMU to reboot. The vulnerability is caused by a missing input data validation which eventually if exploited causes an internal buffer to overflow in the HCI IEC 60870-5-104 function.

Affected products

• Hitachi Energy RTU500 series CMU firmware: 13.3.1, 13.3.2, 13.3.3, 13.4.1

References

• https://publisher.hitachienergy.com/preview?DocumentID=8DBD000121&LanguageCode=en&DocumentPartId=&Action=Launch
• https://search.abb.com/library/Download.aspx?DocumentID=8DBD000121&LanguageCode=en&DocumentPartId=&Action=Launch

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