The Wavlink NU516U1 device version 240425 contains an OS command injection vulnerability in the wzdapMesh function of the /cgi-bin/adm.cgi file. This vulnerability enables remote attackers with low privileges to execute arbitrary OS commands by manipulating inputs to this function. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no user interaction, and partial impacts on confidentiality, integrity, and availability. No official remediation or patch has been disclosed by the vendor as of the publication date.

Successful exploitation could allow an attacker to execute arbitrary operating system commands remotely with low privileges, potentially leading to partial compromise of the device's confidentiality, integrity, and availability. However, there are currently no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected device's management interface to trusted users only and monitor for suspicious activity related to the wzdapMesh function. Avoid exposing the device management interface to untrusted networks.