CVE-2025-64238 identifies a missing authorization vulnerability in the NicolasKulka WPS Bidouille tool, a software utility used primarily for wireless network security testing and WPS (Wi-Fi Protected Setup) related operations. The vulnerability arises from incorrectly configured access control security levels, which fail to properly restrict user permissions. This misconfiguration allows an attacker to bypass authorization checks and perform actions that should be restricted, potentially leading to unauthorized access or manipulation of the tool's functionality. The affected versions include all releases up to and including version 1.33.1. While no exploits have been reported in the wild, the lack of authentication requirements and the nature of the vulnerability make it a significant risk. The absence of a CVSS score indicates that the vulnerability has not yet been formally assessed for severity, but the technical details suggest a high-impact issue. The vulnerability could be exploited remotely if the tool is exposed on a network or locally if an attacker gains access to the host system. Given the tool's use in wireless security testing, exploitation could lead to unauthorized wireless network assessments or manipulation, undermining network security efforts. The vulnerability was published on December 16, 2025, with the initial reservation date on October 29, 2025. No patches or fixes have been linked yet, emphasizing the need for immediate attention from users and administrators of WPS Bidouille.

For European organizations, this vulnerability poses a significant risk to the confidentiality and integrity of wireless security testing processes. Unauthorized access to WPS Bidouille could allow attackers to manipulate wireless network assessments, potentially exposing sensitive network configurations or enabling further attacks on wireless infrastructure. Organizations relying on this tool for penetration testing or network audits may have their security posture compromised if attackers exploit this flaw. The absence of authentication requirements and the ease of exploitation increase the likelihood of unauthorized use, especially in environments where the tool is accessible by multiple users or exposed on internal networks. This could lead to unauthorized disclosure of sensitive information, disruption of security testing workflows, and potential escalation to broader network attacks. The impact on availability is less direct but could occur if attackers disrupt the tool's operation or use it to launch denial-of-service attacks against wireless networks. Overall, the vulnerability threatens the trustworthiness of wireless security assessments and could have cascading effects on network security in European enterprises, particularly those with active wireless infrastructure and security testing programs.

1. Immediately restrict access to WPS Bidouille installations to trusted and authorized personnel only, using network segmentation and access control lists. 2. Monitor and audit usage logs of WPS Bidouille to detect any unauthorized or suspicious activities. 3. Until a patch is released, consider disabling or uninstalling WPS Bidouille in production or sensitive environments to prevent exploitation. 4. Review and harden access control configurations within the tool to ensure proper authorization checks are enforced. 5. Implement strict user authentication and role-based access controls at the system level hosting WPS Bidouille to limit potential misuse. 6. Keep abreast of vendor advisories and apply security patches promptly once available. 7. Educate security teams about this vulnerability to raise awareness and improve incident response readiness. 8. Employ network-level protections such as firewalls and intrusion detection systems to monitor and block unauthorized access attempts targeting the tool.