A denial-of-service vulnerability exists in the Rockwell Automation PowerFlex® 527 due to improper input validation in the device. If exploited, a disruption in the CIP communication will occur and a manual restart will be required by the user to recover it.
https://www.cisa.gov/news-events/ics-advisories/icsa-24-086-02
https://www.rockwellautomation.com/en-us/support/advisory.SD1664.html