Xl4 Plc
Monthly
Brute force password attacks against Horner Automation XL4/XL7 PLCs and Cscape software allow remote unauthenticated attackers to gain unauthorized administrative access via network connections. Weak password policies (limited complexity requirements) combined with absent rate limiting enable systematic credential enumeration. CVSS 9.1 (Critical) reflects network-accessible attack with no authentication required. CISA ICS-CERT advisory confirms vulnerability in operational technology environments where PLCs control industrial processes.
Brute force password attacks against Horner Automation XL4/XL7 PLCs and Cscape software allow remote unauthenticated attackers to gain unauthorized administrative access via network connections. Weak password policies (limited complexity requirements) combined with absent rate limiting enable systematic credential enumeration. CVSS 9.1 (Critical) reflects network-accessible attack with no authentication required. CISA ICS-CERT advisory confirms vulnerability in operational technology environments where PLCs control industrial processes.