A vulnerability exists in the IEC 61850 communication stack that affects multiple Hitachi Energy products.
An attacker could exploit the vulnerability by using a specially crafted message sequence, to force the IEC 61850 MMS-server communication stack, to stop accepting new MMS-client connections.
Already existing/established client-server connections are not affected.
List of affected CPEs:
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search.abb.com/library/Download.aspx?DocumentID=8DBD000128&LanguageCode=en&DocumentPartId=&Action=Launch
search.abb.com/library/Download.aspx?DocumentID=8DBD000129&LanguageCode=en&DocumentPartId=&Action=Launch
search.abb.com/library/Download.aspx?DocumentID=8DBD000130&LanguageCode=en&DocumentPartId=&Action=Launch
search.abb.com/library/Download.aspx?DocumentID=8DBD000131&LanguageCode=en&DocumentPartId=&Action=Launch
search.abb.com/library/Download.aspx?DocumentID=8DBD000132&LanguageCode=en&DocumentPartId=&Action=Launch
search.abb.com/library/Download.aspx?DocumentID=8DBD000133&LanguageCode=en&DocumentPartId=&Action=Launch