The vulnerabilities of the programmable logic controllers MELSEC iQ-R, MELSEC Q, and MELSEC L stem from insufficient checks on input data. This allows attackers to trigger malfunctions during maintenance operations.

The vulnerability of the programmable logic controllers MELSEC iQ-R, MELSEC Q, and MELSEC L exists due to insufficient verification of input data. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause malfunctions through a specially crafted package...