CVE-2025-39204 in MicroSCADA X SYS600
Summary
by MITRE • 06/24/2025
A vulnerability exists in the Web interface of the MicroSCADA X SYS600 product. The filtering query in the Web interface can be malformed, so returning data can leak unauthorized information to the user.
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Analysis
by VulDB Data Team • 01/27/2026
The vulnerability identified as CVE-2025-39204 resides within the web interface of the MicroSCADA X SYS600 industrial control system product, representing a significant security weakness that compromises data integrity and access control mechanisms. This vulnerability specifically targets the filtering query functionality that governs how data is retrieved and displayed within the web interface, creating an avenue for unauthorized information disclosure. The affected system operates within industrial environments where proper access controls are paramount for maintaining operational security and preventing potential cyber attacks that could disrupt critical infrastructure operations.
The technical flaw manifests through improper input validation and sanitization within the web application's query processing mechanism. When users interact with the filtering capabilities of the MicroSCADA interface, the system fails to adequately validate or sanitize the query parameters before executing database operations. This allows malicious actors to craft malformed queries that bypass normal access controls and retrieve data that should be restricted to authorized personnel only. The vulnerability operates at the application layer and can be exploited through web-based interfaces, making it particularly dangerous in environments where remote access is permitted.
The operational impact of this vulnerability extends beyond simple information disclosure, as it fundamentally undermines the security model of the MicroSCADA system and could enable attackers to gain insights into operational parameters, system configurations, and potentially sensitive industrial data. In industrial control systems, such information leakage could provide attackers with valuable intelligence for planning more sophisticated attacks, including those targeting operational technology infrastructure. The vulnerability affects the confidentiality aspect of the CIA triad and could potentially enable lateral movement within network segments if the system is connected to broader enterprise networks.
Organizations utilizing MicroSCADA X SYS600 systems should implement immediate mitigations including input validation controls, proper query parameter sanitization, and enhanced access controls within the web interface. The vulnerability aligns with CWE-20, which describes improper input validation, and could potentially map to ATT&CK techniques involving credential access and reconnaissance. Network segmentation and firewall rules should be implemented to limit access to the affected web interface, while regular security assessments should be conducted to identify similar vulnerabilities in industrial control system applications. The affected vendor should provide a security patch addressing the query filtering mechanism to prevent exploitation of this information disclosure vulnerability.
This vulnerability demonstrates the critical importance of proper input validation in industrial web applications, where the consequences of security flaws can extend far beyond traditional information technology environments. The attack surface of industrial control systems continues to expand with web-based interfaces, making robust security controls essential for protecting critical infrastructure. Organizations should consider implementing web application firewalls and regular security code reviews to prevent similar vulnerabilities from occurring in other components of their industrial control system environments. The vulnerability also highlights the need for security awareness training for industrial control system operators who may inadvertently expose sensitive information through improper use of web interface features.