The HTTP server component of ANDRITZ HIPASE-250 (formerly 250 SCALA) in affected versions exposes an undocumented endpoint that changes the server's logging level and target without requiring authentication. A remote, unauthenticated attacker with network access to the service may suppress audit logging, potentially concealing other activity on the system.
https://www.cisa.gov/news-events/ics-advisories/icsa-26-225-05