The vulnerabilities of the modules of the central processor in microprogrammed logic controllers of the MELSEC-Q Series and MELSEC-L Series allow a hacker to execute arbitrary code.

The vulnerability of the modules of the central processor in microprogrammed logic controllers of the MELSEC-Q Series and MELSEC-L Series is related to errors during the scaling of indicators. Exploiting this vulnerability allows a malicious actor to execute arbitrary code by sending a specially...