https://www.theregister.co.uk/2019/04/11/juniper_hardcoded_credentials/

Juniper Networks has issued an update after finding hardcoded credentials had been left in some of its datacenter switches.

The exposed login, designated CVE-2019-0034, was found in the Junos Network Agent, a software tool used to manage sensors and other devices that monitor network performance. Specifically, hardcoded credentials were found in Google gRPC, a component used with the Junos Telemetry Interface.