The issue is related to the pmproxy component of the Performance Co-Pilot (PCP) software, which is used for monitoring and visualizing performance. It involves the exposure of information in an error data area, potentially allowing a remote attacker to execute arbitrary commands. The default pmproxy configuration exposes the Redis server backend to the local network, enabling remote command execution with the privileges of the Redis user. This can only be exploited when pmproxy is running, which is not the default state and requires manual startup, often from the 'Metrics settings' page of the Cockpit web interface.