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Rewterz Threat Advisory – ICS: Hitachi Energy RTU500 Vulnerability

Severity

High

Analysis Summary

CVE-2022-2081

Hitachi Energy RTU500 is vulnerable to a denial of service, caused by a stack-based buffer overflow in the HCI Modbus TCP function. By sending a large number of specially-crafted messages, a remote attacker could exploit this vulnerability to cause the device to reboot.

Impact

  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2022-2081

Affected Vendors

Hitachi Energy

Affected Products

  • Hitachi RTU500 series CMU firmware 12.0
  • Hitachi RTU500 series CMU firmware 12.2
  • Hitachi RTU500 series CMU firmware 12.4

Remediation

Refer to CISA-CERT Advisory for the patch, upgrade, or suggested workaround information.
CISA-CERT Advisory