Authentication Bypass by Capture-replay vulnerability in Mitsubishi Electric Corporation MELSEC WS Series WS0-GETH00200 all serial numbers allows a remote unauthenticated attacker to bypass authentication by capture-replay attack and illegally login to the affected module. As a result, the remote attacker who has logged in illegally may be able to disclose or tamper with the programs and parameters in the modules.
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-019_en.pdf
https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-03