CVE-2025-41674 is an OS command injection vulnerability identified in the mbNET.mini product by MB connect line. The flaw exists in the device's diagnostic action, which processes POST requests without properly neutralizing special characters used in operating system commands. This improper input sanitization (classified under CWE-78) enables a remote attacker with high privileges to inject and execute arbitrary system commands on the affected device. The vulnerability does not require user interaction and can be exploited remotely over the network, making it particularly dangerous in environments where these devices are exposed or accessible. The CVSS v3.1 score of 7.2 indicates a high-severity issue with a network attack vector (AV:N), low attack complexity (AC:L), requiring high privileges (PR:H), no user interaction (UI:N), and impacting confidentiality, integrity, and availability (C:H/I:H/A:H). Although no public exploits are currently known, the potential impact is significant, as successful exploitation could allow attackers to fully compromise the device, manipulate its operations, extract sensitive data, or disrupt services. The mbNET.mini is typically used in industrial automation and remote monitoring scenarios, which increases the risk profile due to the critical nature of these systems. The lack of available patches at the time of publication necessitates immediate mitigation efforts to reduce exposure.

For European organizations, especially those in industrial automation, manufacturing, and critical infrastructure sectors, this vulnerability poses a substantial risk. Exploitation could lead to unauthorized command execution on mbNET.mini devices, potentially resulting in data breaches, operational disruptions, or sabotage of industrial processes. Given the device's role in remote monitoring and control, attackers could manipulate system behavior, causing safety hazards or production downtime. The high privileges required for exploitation suggest that attackers might need to compromise internal credentials or leverage other vulnerabilities to gain initial access, but once achieved, the impact is severe. The absence of known exploits currently provides a window for proactive defense, but the critical nature of the vulnerability demands urgent attention. European organizations with mbNET.mini devices exposed to less secure networks or lacking proper segmentation are particularly vulnerable. The impact extends beyond individual devices to potentially affect entire industrial control systems and supply chains relying on these devices.

1. Immediately implement network segmentation to isolate mbNET.mini devices from untrusted networks and limit access to trusted administrators only. 2. Enforce strict access controls and monitor for unusual POST requests targeting diagnostic functions. 3. Use VPNs or secure tunnels for remote access to reduce exposure to direct network attacks. 4. Regularly audit and rotate credentials to minimize the risk of privilege escalation. 5. Apply any available vendor patches or firmware updates as soon as they are released. 6. Employ intrusion detection systems (IDS) with signatures or heuristics to detect command injection attempts. 7. Conduct thorough security assessments of the mbNET.mini deployment environment to identify and remediate other potential vulnerabilities. 8. Develop incident response plans specifically addressing potential exploitation scenarios involving these devices. 9. Engage with MB connect line support channels to obtain updates and guidance on mitigation strategies. 10. Consider compensating controls such as disabling diagnostic POST functionalities if feasible until patches are available.