Description
Siemens SIMATIC S7-1200 PLCs 2.x and 3.x allow remote attackers to cause a denial of service (defect-mode transition and control outage) via crafted packets to UDP port 161 (aka the SNMP port).
Advisories 1
- ICSA-14-079-01 Siemens SIMATIC S7-1200 Improper Input Validation Vulnerabilities CISA ICS & IT advisories · Jun 9, 2025