
🚨 HIGH SEVERITY: CVE-2019-6857 (CVSS 7.5) Schneider Electric Modicon PLCs vulnerable to DoS via Modbus TCP. Attackers can crash controllers by reading specific memory blocks. Affected: M580, M340, Quantum, Premium #CVE #Vulnerability #PatchNow #ICS https://t.co/PhjPaCGCoW
Post summary
An advisory highlights that Schneider Electric Modicon PLCs are vulnerable to a DoS attack via Modbus TCP, where reading certain memory blocks can crash controllers; however, no PoC, exploit, patch, or active exploitation evidence is provided.
