CISA has published an advisory on an improper input vulnerability in ABB Relion 650 and 670 Series. Numerous versions of both devices are affected. Successful exploitation of this vulnerability may allow an attacker to reboot the device, causing a denial of service. ABB indicates updating to later versions of the products can mitigate the vulnerabilities. It also offers other recommendations to further protect the devices. CISA also recommends a series of measures to mitigate the vulnerability. Read the advisory at CISA.