CVE-2025-64387 identifies a clickjacking vulnerability in Circutor's TCPRS1plus web application version 1.0.14. Clickjacking occurs when an attacker embeds a legitimate web page inside an invisible or opaque frame on a malicious site, deceiving users into interacting with the embedded page unknowingly. This vulnerability stems from improper restrictions on rendered UI layers or frames (CWE-1021), meaning the application does not implement defenses such as X-Frame-Options or Content Security Policy frame-ancestors directives to prevent framing by unauthorized domains. An attacker can exploit this by crafting a malicious webpage that loads the vulnerable page in a frame and overlays deceptive UI elements, causing victims to click buttons or enter sensitive information under false pretenses. The CVSS 4.0 vector indicates the attack can be performed remotely over the network without authentication, requiring only user interaction. The impact on confidentiality is low to moderate due to potential credential theft or unauthorized actions initiated by the user. Integrity may be affected if unauthorized commands are executed via the UI. Availability impact is minimal. No patches or known exploits are currently available, but the vulnerability is publicly disclosed and should be addressed proactively. The affected product, TCPRS1plus, is used in energy management and monitoring, which may be critical for industrial or infrastructure environments.

For European organizations, especially those in energy, utilities, and industrial sectors using Circutor TCPRS1plus, this vulnerability poses a risk of unauthorized actions performed by deceived users. Attackers could trick operators or administrators into executing commands or divulging credentials, potentially leading to unauthorized access or manipulation of energy monitoring systems. This could disrupt operational processes or lead to data breaches. Although the vulnerability does not allow direct remote code execution or system compromise without user interaction, the social engineering aspect can facilitate further attacks or lateral movement. Given the critical nature of energy infrastructure in Europe, even medium-severity vulnerabilities warrant attention. The risk is heightened in environments where users have elevated privileges or where the web interface controls critical functions. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits following disclosure.

European organizations should implement the following specific mitigations: 1) Immediately restrict access to the TCPRS1plus web interface to trusted networks and users to reduce exposure. 2) Employ web application firewalls (WAFs) with rules to detect and block framing attempts or suspicious referrers. 3) Use browser security policies or extensions that prevent clickjacking, such as enabling frame busting scripts or enforcing Content Security Policy with frame-ancestors directives if configurable. 4) Conduct user awareness training emphasizing the risks of clicking unknown links or interacting with suspicious web pages. 5) Monitor network traffic and logs for unusual access patterns to the TCPRS1plus interface. 6) Coordinate with Circutor for timely patch releases and apply updates as soon as they become available. 7) Consider isolating the management interface from general user access and enforcing multi-factor authentication to reduce impact if credentials are compromised. These steps go beyond generic advice by focusing on network segmentation, user training, and proactive monitoring tailored to the product and environment.