CVE-2025-53524 is a vulnerability identified in Fuji Electric's Monitouch V-SFT-6 software, version 6.2.7.0, classified under CWE-787 (Out-of-Bounds Write). This vulnerability arises during the processing of specially crafted project files, where the software improperly handles memory boundaries, leading to an out-of-bounds write condition. Such a flaw can corrupt memory, enabling an attacker to execute arbitrary code on the affected system. The vulnerability requires local access (AV:L), does not require privileges (PR:N), but does require user interaction (UI:R), such as opening or importing a malicious project file. The CVSS v3.1 score is 7.8, indicating high severity, with impacts rated high on confidentiality, integrity, and availability. The flaw affects industrial control system software used for human-machine interface (HMI) operations, which are critical in monitoring and controlling industrial processes. No patches are currently listed, and no known exploits have been reported in the wild, but the potential for exploitation exists given the nature of the vulnerability. The vulnerability was reserved in July 2025 and published in December 2025, indicating recent discovery and disclosure. The flaw's exploitation could allow attackers to gain control over the HMI system, potentially disrupting industrial operations or causing safety hazards.

For European organizations, especially those operating in industrial automation, manufacturing, energy, and critical infrastructure sectors, this vulnerability poses a significant risk. Successful exploitation could lead to unauthorized code execution, allowing attackers to manipulate industrial processes, disrupt operations, or cause physical damage. The compromise of HMI systems can lead to loss of sensitive operational data, manipulation of control commands, and potential cascading failures in industrial environments. Given the high confidentiality, integrity, and availability impacts, organizations could face operational downtime, safety incidents, regulatory penalties, and reputational damage. The requirement for local access and user interaction somewhat limits remote exploitation but does not eliminate risk, as insiders or attackers with network access to HMI workstations could leverage this vulnerability. The absence of known exploits in the wild provides a window for preemptive mitigation but also means attackers may develop exploits soon after disclosure.

1. Restrict access to Monitouch V-SFT-6 workstations and ensure only trusted personnel can open or import project files. 2. Implement strict file integrity and source verification controls to prevent loading of unauthorized or malicious project files. 3. Monitor system logs and behavior for anomalies indicative of exploitation attempts, such as unexpected crashes or memory errors. 4. Network segmentation should isolate HMI systems from general IT networks to reduce exposure. 5. Apply vendor patches or updates promptly once released; engage with Fuji Electric for timelines and interim mitigations. 6. Conduct user training to raise awareness about the risks of opening untrusted project files. 7. Employ application whitelisting and endpoint protection solutions capable of detecting abnormal code execution patterns. 8. Regularly back up critical configuration and project files to enable recovery in case of compromise.