CISA Releases Four Industrial Control Systems Advisories

The Cybersecurity and Infrastructure Security Agency (CISA) has issued four new advisories for industrial control systems (ICS), highlighting a range of vulnerabilities in products from major vendors. These advisories are a critical resource for organizations that own and operate infrastructure across sectors like energy, manufacturing, and transportation, urging them to take immediate action to mitigate potential risks.

The four advisories released on August 19, 2025, detail vulnerabilities that could be exploited by malicious actors to disrupt critical operations. They include:

• ICSA-25-231-01: This advisory targets vulnerabilities in Siemens Desigo CC Product Family and SENTRON Powermanager. Exploitation could allow an attacker to gain unauthorized access to critical data and settings, potentially top to control system manipulation or denial of service.
• ICSA-25-231-02: This alert focuses on a flaw in the Siemens Mendix SAML Module, a single sign-on solution. The vulnerability could allow an attacker to bypass authentication mechanisms and access sensitive application data, compromising the integrity of the system.
• ICSA-25-217-02 (Update A): CISA released an update for previously identified vulnerabilities in Tigo Energy Cloud Connect Advanced. This advisory provides new details and mitigation steps for flaws that could enable unauthorized access and data manipulation in solar energy management systems.
• ICSA-25-219-07 (Update A): This update addresses issues in EG4 Electronics EG4 Inverters, which are widely used in the energy sector. The advisory highlights vulnerabilities such as unencrypted data transmission and insecure firmware updates, which could allow attackers to intercept and manipulate critical operational data.

Industrial control systems are the backbone of modern society, managing everything from power grids and water treatment plants to manufacturing assembly lines. A cyberattack on these systems can lead to catastrophic physical and economic consequences, including widespread blackouts, supply chain disruptions, and environmental damage. CISA’s advisories serve as a vital early warning system, providing the technical details and recommended mitigation measures necessary for asset owners and operators to secure their networks and devices.

CISA strongly urges all affected users and administrators to review the advisories and apply the recommended patches and workarounds promptly. Implementing a robust cybersecurity posture, which includes network segmentation, multifactor authentication, and continuous monitoring, is paramount to protecting these essential systems from evolving threats.