PT-2026-51661 · 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-2026-12850

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 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("/sbin/route del -net 224.0.0.0 netmask 224.0.0.0");
system("/sbin/route del default ");
if ( dev )
sprintf(s, "/sbin/route add default gw %s dev %s", gw, dev); //attacker controlled gw string
else
sprintf(s, "/sbin/route add default gw %s dev %s", gw, *this); //attacker controlled gw string
system(s);
sprintf(s, "/sbin/route add -net 224.0.0.0 netmask 224.0.0.0 gw %s dev %s", gw, *this); //attacker controlled gw string
system(s);
return 1;
}

Fix

OS Command Injection

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Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-12850

Affected Products

Gv-I/O Box 4E