CVE-2025-53524 is a vulnerability identified in Fuji Electric's Monitouch V-SFT-6 software, version 6.2.7.0, used primarily for industrial human-machine interface (HMI) applications. The vulnerability is an out-of-bounds write (CWE-787) that occurs when the software processes a specially crafted project file. This memory corruption flaw can lead to arbitrary code execution, allowing an attacker to run malicious code with the privileges of the application. The CVSS v3.1 score of 7.8 reflects a high severity, with an attack vector classified as local (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but requiring user interaction (UI:R). The scope is unchanged (S:U), and the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). Although no known exploits are reported in the wild, the vulnerability poses a significant risk to environments where Monitouch V-SFT-6 is deployed. The vulnerability arises from improper bounds checking during project file parsing, which can corrupt memory and enable code execution. This is particularly concerning in industrial control systems (ICS) where Monitouch is used to monitor and control critical processes. The flaw could be exploited by an attacker who can trick a user into opening a malicious project file, potentially leading to system compromise, disruption of industrial operations, or data theft. The vulnerability was reserved in July 2025 and published in December 2025, with no patches currently available, emphasizing the need for proactive mitigation.

For European organizations, especially those in manufacturing, energy, utilities, and critical infrastructure sectors, this vulnerability could have severe consequences. Successful exploitation could lead to unauthorized control over industrial processes, resulting in operational disruptions, safety hazards, and potential physical damage. Confidentiality breaches could expose sensitive operational data, while integrity violations might alter control commands, causing unsafe conditions. Availability impacts could lead to downtime of critical systems, affecting production and service delivery. Given the local attack vector and requirement for user interaction, the threat is more likely in environments with insufficient access controls or lax operational security. However, the high impact on ICS environments elevates the risk profile. European industries relying on Fuji Electric Monitouch V-SFT-6 for process visualization and control are particularly vulnerable, potentially affecting supply chains and critical services. The absence of known exploits in the wild currently limits immediate risk but does not preclude future exploitation, especially by sophisticated threat actors targeting European industrial sectors.

1. Restrict access to Monitouch V-SFT-6 systems to trusted personnel only and enforce strict user authentication and authorization policies. 2. Implement rigorous validation and verification of all project files before loading, including scanning for anomalies or unexpected modifications. 3. Educate users about the risks of opening project files from untrusted or unknown sources to reduce the likelihood of social engineering attacks. 4. Monitor system logs and network traffic for unusual activities that could indicate exploitation attempts or anomalous behavior. 5. Employ application whitelisting and endpoint protection solutions tailored for ICS environments to detect and block unauthorized code execution. 6. Coordinate with Fuji Electric for timely release and deployment of security patches or updates addressing this vulnerability. 7. Consider network segmentation to isolate Monitouch systems from broader enterprise networks, limiting lateral movement in case of compromise. 8. Conduct regular security assessments and penetration testing focused on ICS components to identify and remediate weaknesses proactively.