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10.0
CVE-2026-12485: GV-I/O Box 4E: Unsecured Service Allows Network Access
CVE-2026-12485
Summary
The GV-I/O Box 4E has a service running by default that can be accessed by anyone on the network. This allows an attacker to potentially interact with the device and cause unintended behavior. To mitigate this risk, consider disabling the DVRSearch service or restricting network access to the device.
Original title
GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.
DVRSearch is a service running by default on the IOBox listening for UDP ...
Original description
GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.
DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it.
Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:
#### IP field stack overflow
The following code is vulnerable to a stack overflow that is attacker-controlled:
v3 = strlen(g_network_config->ip_addr);
memcpy(&reply_buf[36], g_network_config->ip_addr, v3);
DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it.
Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:
#### IP field stack overflow
The following code is vulnerable to a stack overflow that is attacker-controlled:
v3 = strlen(g_network_config->ip_addr);
memcpy(&reply_buf[36], g_network_config->ip_addr, v3);
nvd CVSS3.1
10.0
Vulnerability type
CWE-121
Stack-based Buffer Overflow
Published: 24 Jun 2026 · Updated: 23 Jul 2026 · First seen: 24 Jun 2026