CISA has published an advisory on an incorrect default permissions vulnerability in ABB System 800xA. Numerous products and versions of these products are affected. Successful exploitation of the vulnerability could allow an attacker to make the system node inaccessible or tamper with runtime data in the system. ABB has published an advisory with its recommendations for mitigation measures. CISA also recommends a series of measures to mitigate the vulnerability. Read the advisory at CISA.