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Omron PLC Vulnerability Exploited by Sophisticated ICS Malware

November 18, 2022

On November 10, the US Cybersecurity and Infrastructure Security Agency (CISA) published two advisories describing three vulnerabilities affecting NJ and NX-series controllers and software made by Japanese electronics giant Omron.

One of the advisories describes CVE-2022-33971, a high-severity flaw that can allow an attacker who can access the targeted Omron programmable logic controller (PLC) to cause a denial-of-service (DoS) condition or execute malicious programs.

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