The Cybersecurity and Infrastructure Security Agency (CISA) has issued an Industrial Control Systems (ICS) advisory, ICSA-25-296-03, addressing critical vulnerabilities in Schneider Electric's Modicon M580 and M340 Programmable Logic Controllers (PLCs). These vulnerabilities could allow an attacker to cause denial of service or execute arbitrary code, potentially disrupting industrial operations and critical infrastructure. The advisory provides detailed information on the affected products, the nature of the vulnerabilities, and recommended mitigation strategies to enhance security posture.
Schneider Electric's Modicon M580 and M340 PLCs are widely used in industrial environments for automation and control. The identified vulnerabilities pose significant risks as they could be exploited remotely without authentication, making them attractive targets for threat actors aiming to disrupt industrial processes or cause physical damage.
CISA strongly recommends organizations using these PLCs to apply the vendor-provided patches immediately and follow best practices for securing ICS environments. This includes network segmentation, monitoring for unusual activity, and restricting access to critical control systems. The advisory also emphasizes the importance of timely updates and continuous vigilance to protect against evolving cyber threats targeting industrial control systems.
This advisory is part of CISA's ongoing efforts to safeguard critical infrastructure by providing timely and actionable intelligence on vulnerabilities affecting industrial control systems. Organizations are encouraged to review the advisory thoroughly and implement the recommended mitigations to reduce the risk of exploitation and ensure operational continuity.
This Cyber News was published on www.cisa.gov. Publication date: Thu, 23 Oct 2025 16:38:15 +0000