Description
Siemens SIMATIC S7-400 PN CPU devices with firmware 6 before 6.0.3 allow remote attackers to cause a denial of service (defect-mode transition and service outage) via crafted ICMP packets.
Advisories 1
- ICSA-12-212-02 Siemens SIMATIC S7-400 PN CPU DoS CISA ICS & IT advisories · Jun 5, 2025