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machine expert protocol

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The machine expert protocol tag covers discussions about Schneider Electric's Machine Expert protocol used in Modicon M241, M251, and M262 controllers. Content highlights a CISA advisory for a CWE-404 Improper Resource Shutdown or Release flaw that can cause partial denial of service. An unauthenticated attacker may send malicious payloads to occupy communication channels, starving legitimate traffic. The issue is addressed in specific firmware and software combinations. The tag emphasizes that availability is a security property in OT environments, relevant for industrial automation professionals managing controller security and protocol vulnerabilities.
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    CISA Warns of CWE-404 DoS in Schneider Modicon M241 M251 M262 (Machine Expert)

    Schneider Electric’s Modicon M241, M251, and M262 controllers are once again in the security spotlight after CISA published an advisory for a CWE-404 Improper Resource Shutdown or Release flaw that can trigger a partial denial of service in the Machine Expert protocol. The risk is not abstract...
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    • cwe-404 resource shutdown machine expert protocol ot cybersecurity schneider modicon controllers
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    • Forum: Security Alerts
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