High
A vulnerability exists in the Intelligent Electronic Device (IED) Connectivity Package (ConnPack) credential storage function in Hitachi Energy’s PCM600 products in which IED credentials are stored in cleartext inside the PCM600 database. An unauthorized user who gains access to the exported backup file could exploit this vulnerability and obtain IED credentials, which could be used to perform unauthorized modifications, such as loading incorrect configurations, rebooting the IEDs, or causing a denial-of-service condition.
Denial of Service
Mitsubishi Electric
Refer to CISA-CERT Advisory for the patch, upgrade, or suggested workaround information.