CVE-2025-47755 is a high-severity vulnerability identified in FUJI ELECTRIC CO., LTD.'s V-SFT software, specifically affecting versions 6.2.5.0 and earlier. The vulnerability arises from an out-of-bounds read condition in the VS6EditData!VS4_SaveEnvFile function. This function is responsible for handling the saving of environment files within the V-SFT software. The flaw is triggered when the software opens specially crafted V7 or V8 files, which can cause the program to read memory outside the intended buffer boundaries. This out-of-bounds read can lead to multiple adverse outcomes, including application crashes, information disclosure, and potentially arbitrary code execution. The arbitrary code execution risk indicates that an attacker could execute malicious code within the context of the vulnerable application, potentially leading to full system compromise depending on the privileges of the V-SFT process. The CVSS v3.1 score of 7.8 reflects a high severity, with the vector indicating that the attack requires local access (AV:L), low attack complexity (AC:L), no privileges required (PR:N), but user interaction is necessary (UI:R). The vulnerability impacts confidentiality, integrity, and availability (all rated high), meaning that sensitive information could be leaked, data could be manipulated, and system stability could be compromised. Currently, there are no known public exploits in the wild, and no patches have been linked yet, which suggests that organizations using this software should prioritize monitoring and mitigation efforts. The vulnerability was published on May 19, 2025, and has been assigned by JPCERT, with enrichment from CISA, indicating recognition by multiple security authorities.

For European organizations, the impact of CVE-2025-47755 can be significant, especially those relying on FUJI ELECTRIC's V-SFT software for industrial automation, manufacturing control, or critical infrastructure management. The ability to cause arbitrary code execution means attackers could potentially gain control over systems managing industrial processes, leading to operational disruptions, safety hazards, and data breaches. Information disclosure risks could expose sensitive operational data or intellectual property. The requirement for local access and user interaction somewhat limits remote exploitation but does not eliminate risk, particularly in environments where insiders or compromised user accounts exist. Given the critical nature of industrial control systems in sectors such as energy, manufacturing, and utilities across Europe, exploitation could lead to production downtime, financial losses, and reputational damage. Additionally, the integrity and availability impacts could disrupt supply chains or critical services, which are highly sensitive in European regulatory and operational contexts.

To mitigate CVE-2025-47755, European organizations should take the following specific actions: 1) Immediately identify all instances of V-SFT software version 6.2.5.0 or earlier within their environment, prioritizing those in critical operational roles. 2) Restrict access to systems running V-SFT to trusted personnel only, enforcing strict local access controls and monitoring for unauthorized access attempts. 3) Educate users about the risk of opening untrusted or specially crafted V7 or V8 files, implementing policies to prevent opening files from unknown or unverified sources. 4) Employ application whitelisting and endpoint detection and response (EDR) tools to detect anomalous behavior indicative of exploitation attempts. 5) Monitor vendor communications closely for patches or updates addressing this vulnerability and plan for rapid deployment once available. 6) Consider network segmentation to isolate systems running vulnerable V-SFT versions from broader enterprise networks, reducing the risk of lateral movement. 7) Conduct regular security audits and vulnerability scans focusing on industrial control software to detect and remediate similar issues proactively.