CVE-2026-12486 in GV-IO Box 4E
Summary
by MITRE • 06/24/2026
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_IP_Addr command injection
The following function takes a string as an ip address, performs no sanitization 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_IP_Addr(const char **this, char *ip_addr)
{
bool v2; // zf
char v4[72]; // [sp+0h] [bp-48h] BYREF
v2 = *this == 0;
if ( *this )
v2 = ip_addr == 0;
if ( v2 )
return 0;
sprintf(v4, "/sbin/ifconfig %s %s", *this, ip_addr); // attacker controlled ip address
system(v4);
return 1;
}
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Analysis
by VulDB Data Team • 06/24/2026
The vulnerability described represents a critical command injection flaw within the GeoVision GV-I/O Box 4E 2.09 device firmware, specifically within the libNetSetObj.so library that manages network configuration functionalities. This issue stems from inadequate input validation and sanitization mechanisms within the CNetSetObj::m_F_n_Set_IP_Addr function, which directly executes system commands without proper parameter sanitization. The flaw allows remote attackers to inject malicious commands through crafted network packets, potentially leading to complete system compromise and unauthorized access to critical network services.
The technical implementation of this vulnerability demonstrates a classic command injection pattern where user-controllable input flows directly into system command execution without appropriate filtering or escaping mechanisms. The function accepts an IP address parameter that gets directly interpolated into a shell command string constructed via sprintf, creating an environment where attackers can inject arbitrary commands through the ip_addr parameter. This specific implementation violates fundamental security principles and constitutes a CWE-77 (Command Injection) vulnerability, as outlined in the Common Weakness Enumeration catalog. The attack surface is expanded by the fact that this vulnerable function is accessible through multiple network endpoints including the DVRSearch service and Network.cgi interface, providing attackers with multiple potential entry points.
The operational impact of this vulnerability extends beyond simple command execution to encompass complete system compromise and unauthorized network access. An attacker who successfully exploits this vulnerability could gain root-level privileges on the device, allowing them to modify network configurations, install malicious software, or establish persistent backdoors. The implications are particularly severe given that this affects a network-attached security device, potentially enabling attackers to disrupt security operations or use the compromised device as a pivot point for attacking other systems within the network infrastructure. This vulnerability aligns with ATT&CK technique T1059.001 (Command and Scripting Interpreter: PowerShell) and T1068 (Exploitation for Privilege Escalation) in its potential for lateral movement and privilege escalation.
The primary mitigation strategies involve immediate firmware updates from GeoVision addressing the input validation issues within the libNetSetObj.so library, implementing proper parameter sanitization and input validation before any system command execution occurs. Network segmentation and access control measures should be deployed to limit exposure of vulnerable services, while monitoring systems should be configured to detect unusual network traffic patterns that might indicate exploitation attempts. Additionally, regular security audits and penetration testing of industrial control systems should be conducted to identify similar vulnerabilities in other embedded network devices within the infrastructure. The vulnerability highlights the critical need for secure coding practices in embedded systems and demonstrates how seemingly simple configuration functions can become significant security gateways when proper input validation is omitted.