CVE-2026-25938 in FUXA
Summary
by MITRE • 02/10/2026
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. From 1.2.8 through 1.2.10, an authentication bypass vulnerability in FUXA allows an unauthenticated, remote attacker to execute arbitrary code on the server when the Node-RED plugin is enabled. This has been patched in FUXA version 1.2.11.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 02/14/2026
The vulnerability CVE-2026-25938 represents a critical authentication bypass flaw in FUXA, a web-based process visualization software commonly used in industrial control systems for SCADA/HMI/dashboard applications. This vulnerability specifically affects versions 1.2.8 through 1.2.10, creating a significant security risk for operational technology environments where industrial automation systems rely on such visualization platforms. The affected software serves as a bridge between industrial processes and human operators, making it a prime target for attackers seeking to compromise industrial control systems. The vulnerability's impact extends beyond simple access control issues as it enables remote code execution capabilities that could fundamentally compromise the integrity and availability of critical infrastructure operations.
The technical flaw stems from improper authentication validation mechanisms within the Node-RED plugin component of FUXA. When this plugin is enabled, attackers can bypass the standard authentication process without providing valid credentials, gaining unauthorized access to the underlying server infrastructure. This authentication bypass occurs at the application layer and leverages weaknesses in how the software validates user identities and session management. The vulnerability specifically exploits the interaction between the web interface and the Node-RED integration, where the authentication checks are insufficient to prevent unauthorized access to server-side execution capabilities. The flaw demonstrates poor input validation and inadequate access control implementation that aligns with common weakness patterns identified in CWE-287, which addresses improper authentication issues.
The operational impact of this vulnerability is severe for industrial environments that depend on FUXA for process visualization and monitoring. Remote attackers can execute arbitrary code on affected servers, potentially leading to complete system compromise and unauthorized control of industrial processes. This capability enables attackers to manipulate process data, alter control parameters, and potentially cause physical damage to industrial equipment. The vulnerability's remote exploitability means that attackers do not require physical access or network proximity to the affected systems, making it particularly dangerous for distributed industrial control networks. Organizations using FUXA in critical infrastructure environments face risks including process disruption, data manipulation, and potential safety hazards in manufacturing and utility operations.
Security professionals should prioritize immediate mitigation of this vulnerability by upgrading to FUXA version 1.2.11, which contains the necessary patches to address the authentication bypass issue. System administrators should also implement additional network segmentation controls to limit access to FUXA systems and monitor for suspicious network activity that might indicate exploitation attempts. The vulnerability aligns with ATT&CK technique T1190, which covers exploitation of remote services, and represents a critical threat to industrial cybersecurity frameworks. Organizations should conduct comprehensive vulnerability assessments of their industrial control system environments to identify any other instances of FUXA or similar software that might be vulnerable to similar authentication bypass attacks. The remediation process should include thorough testing of the updated software to ensure that the patch does not introduce compatibility issues with existing industrial processes and control system integrations.