Eval Injection in CONPROSYS HMI System Enables Authenticated Code Execution

CVE-2026-82789 represents a critical eval injection vulnerability (CWE-95) in CONPROSYS HMI System that allows authenticated attackers to execute arbitrary code through improper neutralization of code directives. This vulnerability is particularly dangerous in industrial control environments where HMI systems serve as critical interfaces for operational technology. While the vulnerability requires valid login credentials, it significantly expands an attacker's capability once authenticated—transforming credential compromise into full system compromise. Organizations deploying CONPROSYS HMI in manufacturing, energy, or critical infrastructure sectors face elevated risk of operational disruption and data exfiltration.

Although this CVE currently maps to zero Casky skills due to the absence of mapped MITRE ATT&CK techniques, practitioners using Casky's Claude-powered extended reasoning engine can detect precursor patterns through behavioral analysis of authenticated sessions. When integrated with detection workflows, Casky would identify suspicious activity chains characteristic of eval injection exploitation: unusual code patterns in user inputs, unexpected process spawning from HMI application contexts, or anomalous system calls following authentication. Security teams should configure alerts for code evaluation attempts within HMI administrative interfaces and monitor for process execution anomalies. As MITRE mappings evolve for this vulnerability—likely encompassing Execution and Persistence techniques—Casky's 754-skill framework will enable detection of post-exploitation activities, allowing practitioners to identify and contain threats before attackers achieve their operational objectives.