A format string vulnerability exists in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to memory corruption. An attacker can send a series of HTTP requests to trigger this vulnerability.
https://blog.talosintelligence.com/open-plc-and-planet-vulnerabilities/
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2228
https://talosintelligence.com/vulnerability_reports/TALOS-2025-2228