GeoVision GV-IO Box 4E up to 2.09/2.11 Network libNetSetObj.so os command injection

Summaryinfo

A vulnerability was found in GeoVision GV-IO Box 4E up to 2.09/2.11. It has been declared as critical. Affected by this vulnerability is an unknown functionality in the library libNetSetObj.so of the component Network Handler. Executing a manipulation can lead to os command injection. This vulnerability is registered as CVE-2026-12849. The physical device can be targeted for the attack. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GeoVision GV-IO Box 4E up to 2.09/2.11. It has been declared as critical. This vulnerability affects some unknown processing in the library libNetSetObj.so of the component Network Handler. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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; }

The weakness was published by Philippe Laulheret. The advisory is shared for download at geovision.com.tw. This vulnerability was named CVE-2026-12849 since 06/22/2026. The exploitation appears to be easy. The attack needs to be approached locally. The exploitation requires an enhanced level of successful authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 2.12 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-38651). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• GeoVision

Name

• GV-IO Box 4E

Version

• 2.0
• 2.09
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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