CVE-2026-12851
CriticalCVSS 9.1Exploitation Probability (EPSS)
Elevated risk74th percentile — higher than 74% of all known CVEs
Summary
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.
Risk Assessment
An attacker can exploit this vulnerability to remotely execute arbitrary system commands, potentially gaining control over the device and access to the local network.
Recommendation
It is recommended to update the software to the latest version that addresses these vulnerabilities and to implement appropriate security measures to restrict access to the exposed services.
Original NVD description (English source)
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_DNS_Addr command injection The following function can take up to two addresses, performs no sanitization and then 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_DNS_Addr(CNetSetObj *this, char *dns1, char *dns2) { int result; // r0 char v5[80]; // [sp+0h] [bp-50h] BYREF if ( !dns1 ) result = 0; if ( dns1 ) { sprintf(v5, "/bin/echo nameserver %s > /etc/resolv.conf", dns1); // attacker controlled dns1 field system(v5); if ( dns2 ) { sprintf(v5, "/bin/echo nameserver %s >> /etc/resolv.conf", dns2); system(v5); } return 1; } return result;