CVE-2026-12850

/// Technical description

Multiple OS command injection vulnerabilities exist in the libNetSetObj.so functionality of GeoVision GV-I/O Box 4E 2.09. A specially crafted network packet can lead to command execution. An attacker can send a network request to trigger this vulnerability.

`libNetSetObj.so` is an internal library used by various binaries on the device to configure the network stack (start and stop various services, configure IP, Netmask, gateway, dns, etc.)

#### CNetSetObj::m_F_n_Set_Gate_way command injection

The following function takes a string as a gatewy address, performs no sanitization on it and calls `system`. This is a classic command injection vulnerability. The function is reachable from both the network-exposed `DVRSearch` service and the `Network.cgi` endpoint.

int __fastcall CNetSetObj::m_F_n_Set_Gate_way(const char **this, char *gw, char *dev)

{

char s[324]; // [sp+4h] [bp-144h] BYREF

if ( !dev && !*this || !gw )

return 0;

system("/sbi

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References