Hitachi Energy Ellipse asset management and Relion 670/650 series protective relays are covered under CISA advisories ICSA-25-037-02 and ICSA-25-155-01/02, with hard-coded credential (CWE-798) and remote exploitation vulnerabilities applicable to substation and energy sector environments. The hard-coded credential class is particularly high-risk in relay environments where network segmentation is often incomplete and IEC 61850 or DNP3 management interfaces may be reachable from adjacent zones. Immediate isolation of affected relay management interfaces and firmware validation against vendor advisory patched versions are the priority actions.