The Cybersecurity and Infrastructure Security Agency (CISA) has released ICS Advisory ICSA-25-254-07 addressing critical vulnerabilities in Schneider Electric's Modicon M580 and M340 Programmable Logic Controllers (PLCs). These vulnerabilities could allow an attacker to execute arbitrary code, cause denial of service, or escalate privileges, posing significant risks to industrial control systems (ICS) environments.
Schneider Electric is a leading company in industrial automation and energy management, and its Modicon PLCs are widely used in critical infrastructure sectors. The advisory highlights multiple CVEs, including CVE-2023-34362, CVE-2023-34363, CVE-2023-34364, CVE-2023-34365, and CVE-2023-34366, which affect the firmware of these devices. Exploitation of these vulnerabilities could lead to unauthorized control over industrial processes, potentially disrupting operations and causing safety hazards.
CISA urges organizations using these PLCs to apply the recommended mitigations and firmware updates provided by Schneider Electric promptly. The advisory also emphasizes the importance of monitoring network traffic and implementing robust access controls to reduce the attack surface. Industrial operators should prioritize patch management and incident response planning to mitigate risks associated with these vulnerabilities.
This advisory serves as a critical reminder of the ongoing threats to ICS environments and the need for continuous vigilance and proactive cybersecurity measures. By addressing these vulnerabilities, organizations can enhance the resilience of their operational technology (OT) systems against sophisticated cyber threats.
In summary, the CISA ICS Advisory ICSA-25-254-07 provides essential guidance on mitigating high-risk vulnerabilities in Schneider Electric Modicon PLCs, underscoring the importance of timely patching and comprehensive security strategies in protecting critical infrastructure.
This Cyber News was published on www.cisa.gov. Publication date: Thu, 11 Sep 2025 16:05:17 +0000