CVE-2026-12851
GeoVision GV-I/O Box 4E libNetSetObj.so OS command injection vulnerability
Description
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;
INFO
Published Date :
June 24, 2026, 5:17 a.m.
Last Modified :
Oct. 25, 2026, 11:10 p.m.
Remotely Exploit :
Yes !
Source :
0df08a0e-a200-4957-9bb0-084f562506f9
Affected Products
The following products are affected by CVE-2026-12851
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 0df08a0e-a200-4957-9bb0-084f562506f9 |
Solution
- Sanitize all user-supplied input before use.
- Avoid calling system() with untrusted data.
- Update to a patched version when available.
- Restrict network access to vulnerable services.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-12851.
| URL | Resource |
|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2026-2379 | |
| https://www.geovision.com.tw/cyber_security.php |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12851 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-12851
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12851 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12851 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 25, 2026
Action Type Old Value New Value Added Translation Title: GV-I/O Box 4E de GeoVision Inc., Description: Múltiples vulnerabilidades de inyección de comandos del sistema operativo existen en la funcionalidad libNetSetObj.so de GeoVision GV-I/O Box 4E 2.09. Un paquete de red especialmente diseñado puede llevar a la ejecución de comandos. Un atacante puede enviar una solicitud de red para activar esta vulnerabilidad. ’libNetSetObj.so’ es una biblioteca interna utilizada por varios binarios en el dispositivo para configurar la pila de red (iniciar y detener varios servicios, configurar IP, máscara de red, puerta de enlace, DNS, etc.). #### Inyección de comandos en CNetSetObj::m_F_n_Set_DNS_Addr La siguiente función puede tomar hasta dos direcciones, no realiza ninguna sanitización y luego llama a system. Esta es una vulnerabilidad clásica de inyección de comandos. La función es accesible tanto desde el servicio ’DVRSearch’ expuesto en la red como desde el endpoint ’Network.cgi’. 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); // campo dns1 controlado por el atacante system(v5); if ( dns2 ) { sprintf(v5, “/bin/echo nameserver %s >> /etc/resolv.conf”, dns2); system(v5); } return 1; } return result; } -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 24, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-12851', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-24T12:50:41.800146Z'} -
New CVE Received by 0df08a0e-a200-4957-9bb0-084f562506f9
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'GeoVision Inc.', 'product': 'GV-I/O Box 4E', 'versions': [{'status': 'affected', 'version': 'V2.09'}, {'status': 'unaffected', 'version': 'V2.12'}], 'platforms': ['Linux'], 'defaultStatus': 'unaffected'}] Added Description 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; Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://talosintelligence.com/vulnerability_reports/TALOS-2026-2379 Added Reference https://www.geovision.com.tw/cyber_security.php