CVE-2025-35009 in IPn4Gii
Summary
by MITRE • 06/09/2025
Products that incorporate the Microhard BulletLTE-NA2 and IPn4Gii-NA2 are vulnerable to a post-authentication command injection issue in the AT+MNNETSP command that can lead to privilege escalation. This is an instance of CWE-88, "Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')," and is estimated as a CVSS 7.1 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N). This issue has not been generally fixed at the time of this CVE record's first publishing.
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Analysis
by VulDB Data Team • 01/12/2026
The vulnerability identified as CVE-2025-35009 affects specific telecommunications equipment manufactured by Microhard, namely the BulletLTE-NA2 and IPn4Gii-NA2 devices. These products are designed for wireless communication and network connectivity in industrial and commercial environments where reliable network infrastructure is critical. The affected devices operate within the broader context of embedded systems and IoT devices that often lack robust security controls, making them particularly susceptible to command injection attacks that could compromise entire network infrastructures.
The technical flaw resides within the AT+MNNETSP command implementation of these devices, which fails to properly sanitize user input before incorporating it into system commands. This represents a classic instance of CWE-88, Argument Injection, where command argument delimiters are not adequately neutralized, allowing attackers who have already established authentication credentials to inject malicious commands. The vulnerability specifically manifests when processing input parameters within the AT command interface, which is commonly used for device configuration and management in cellular communication modules.
The operational impact of this vulnerability is significant, as it enables privilege escalation following successful authentication. While the attack requires initial access to the device through valid credentials, the command injection allows the attacker to execute arbitrary commands with elevated privileges. This could potentially lead to complete system compromise, unauthorized data access, network disruption, or even use of the device as a pivot point for attacking other systems within the network. The CVSS score of 7.1 indicates a high-severity risk that requires immediate attention from system administrators and security teams responsible for these network devices.
The vulnerability's persistence across multiple generations of these products suggests a fundamental design flaw in the command processing logic rather than a simple code oversight. This issue has not yet been addressed through general fixes, meaning that affected organizations must implement workarounds or seek specific vendor patches when available. The lack of a general fix at the time of CVE publication indicates that the vulnerability may require specific device-level patches or configuration changes that are not yet widely available. Organizations should consider implementing network segmentation, access controls, and monitoring solutions to mitigate the risk while awaiting official patches. This vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter, specifically targeting the use of AT commands for system manipulation. The issue demonstrates the importance of input validation and proper command construction in embedded systems, particularly those handling network configuration and management interfaces.