PT-2026-51660 · Geovision · Gv-I/O Box 4E

Kelly Patterson

+2

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Published

2026-06-24

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Updated

2026-06-24

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CVE-2026-12849

CVSS v3.1

9.1

Critical

VectorAV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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 Net Mask command injection

The following function takes a string as a net mask 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 Net Mask(const char **this, char *netmask addr)
{
bool v2; // zf
char v4[72]; // [sp+0h] [bp-48h] BYREF
v2 = *this == 0;
if ( *this )
v2 = netmask addr == 0;
if ( v2 )
return 0;
sprintf(v4, "/sbin/ifconfig %s netmask %s", *this, netmask addr); // attacker controlled netmask addr
system(v4);
return 1;
}

Fix

OS Command Injection

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Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-12849

Affected Products

Gv-I/O Box 4E