Multiple stack-based buffer overflow vulnerabilities exist in the formPingCmd functionality of Planet WGR-500 v1.3411b190912. A specially crafted series of HTTP requests can lead to stack-based buffer overflow. An attacker can send a series of HTTP requests to trigger these vulnerabilities.This buffer overflow is related to the `ipaddr` request parameter for composing the `"ping -c <counts> <ipaddr> 2>&1 > %s &"` string.
https://blog.talosintelligence.com/open-plc-and-planet-vulnerabilities/
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2226
https://talosintelligence.com/vulnerability_reports/TALOS-2025-2226