CVE-2025-29534 is a high-severity authenticated remote code execution (RCE) vulnerability affecting the PowerStick Wave Dual-Band Wifi Extender V1.0. The vulnerability arises from insufficient sanitization of user-supplied input processed by the /cgi-bin/cgi_vista.cgi executable. Specifically, this CGI script passes input directly to a system-level function call without proper validation or escaping, enabling an attacker with valid credentials to execute arbitrary commands with root privileges on the device. This vulnerability is categorized under CWE-78 (Improper Neutralization of Special Elements used in an OS Command), indicating that command injection is the root cause. The CVSS v3.1 base score is 8.8, reflecting a high-impact flaw with network attack vector (AV:N), low attack complexity (AC:L), requiring privileges (PR:L) but no user interaction (UI:N). 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 yet, the vulnerability's nature and ease of exploitation by authenticated users make it a significant threat. The lack of available patches at the time of publication increases the urgency for mitigation. The vulnerability affects the device's firmware or software handling the CGI interface, which is commonly used for device management and configuration, making it a critical entry point for attackers to gain full control over the device and potentially pivot into connected networks.

For European organizations, this vulnerability poses a substantial risk, especially for those deploying PowerStick Wave Dual-Band Wifi Extender V1.0 devices in enterprise or critical infrastructure environments. Successful exploitation could lead to complete compromise of the affected device, allowing attackers to execute arbitrary commands with root privileges. This can result in unauthorized access to internal networks, interception or manipulation of network traffic, disruption of network availability, and potential lateral movement to other systems. Given the device's role as a Wi-Fi extender, it often bridges wireless and wired networks, making it a strategic target for attackers seeking to infiltrate corporate networks. The high confidentiality, integrity, and availability impacts could lead to data breaches, service outages, and loss of trust. Additionally, since the attack requires valid credentials, compromised or weak credentials could facilitate exploitation. The absence of patches means organizations must rely on immediate mitigations to reduce exposure. The threat is particularly relevant for sectors with stringent security requirements such as finance, healthcare, government, and telecommunications within Europe.

1. Immediate credential hygiene: Ensure strong, unique passwords for all devices and change default or weak credentials to reduce the risk of authenticated exploitation. 2. Network segmentation: Isolate Wi-Fi extenders from critical network segments to limit potential lateral movement if a device is compromised. 3. Access control: Restrict management interface access to trusted IP addresses or VPNs to minimize exposure to attackers. 4. Monitor device logs and network traffic for unusual command execution patterns or unexpected administrative activity. 5. Disable or restrict CGI interface access if not required for daily operations. 6. Engage with the vendor for firmware updates or patches and apply them promptly once available. 7. Implement multi-factor authentication (MFA) for device management interfaces if supported to add an additional layer of security. 8. Conduct regular vulnerability assessments and penetration testing focusing on network devices to detect similar issues proactively.