Description
SunGrow WiNet-S V200.001.00.P025 and earlier versions is missing integrity checks for firmware upgrades. Sending a specific MQTT message allows an update to an inverter or a WiNet connectivity dongle with a bogus firmware file that is located on attacker-controlled server.
Advisories 1
- ICSA-25-072-12 Sungrow iSolarCloud Android App, WiNet Firmware CISA ICS & IT advisories · Mar 13, 2025