This vulnerability involves multiple OS command injection flaws in the libNetSetObj.so component of GeoVision GV-I/O Box 4E version 2.09. The function CNetSetObj::m_F_n_Set_DNS_Addr accepts up to two DNS addresses without sanitization and uses sprintf to construct shell commands that are executed via system(). Because the inputs are attacker-controlled and unsanitized, an attacker can inject arbitrary commands. The vulnerable function is accessible through the network-exposed DVRSearch service and the Network.cgi endpoint, enabling remote exploitation via crafted network requests.

Successful exploitation allows an attacker with network access and high privileges to execute arbitrary OS commands on the affected device, leading to complete compromise of confidentiality, integrity, and availability. This can result in full system control, data manipulation, or denial of service.

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 services (DVRSearch and Network.cgi) to trusted users only. Monitor for unusual network activity targeting these endpoints. Avoid exposing the device directly to untrusted networks.