CVE-2025-41675 is an OS command injection vulnerability identified in the mbNET.mini product from MB connect line. The vulnerability arises from improper neutralization of special elements used in OS commands within the cloud server communication script, specifically in the handling of GET requests. This flaw allows a remote attacker with high privileges to inject and execute arbitrary system commands on the affected device. The exploitation vector is network-based (AV:N), requires low attack complexity (AC:L), but demands high privileges (PR:H) and no user interaction (UI:N). The vulnerability impacts confidentiality, integrity, and availability (C:H/I:H/A:H) of the system. The mbNET.mini is typically used in industrial communication and remote access scenarios, making this vulnerability particularly critical in operational technology (OT) environments. Although no known exploits are currently reported in the wild, the potential for severe impact is significant due to the device's role in critical infrastructure. The vulnerability was reserved in April 2025 and published in July 2025. No patches are currently linked, indicating that mitigation relies on vendor updates or workarounds. The CWE-78 classification highlights the root cause as improper input validation leading to OS command injection, a common and dangerous flaw in embedded and networked devices.

For European organizations, especially those in industrial automation, manufacturing, energy, and critical infrastructure sectors, this vulnerability poses a significant risk. Exploitation can lead to full system compromise, allowing attackers to execute arbitrary commands that could disrupt operations, steal sensitive data, or pivot to other network segments. Given the mbNET.mini's role in remote communication, attackers could gain persistent access or cause denial of service, impacting operational continuity. The high CVSS score reflects the potential for widespread damage and data breaches. The impact is exacerbated in environments where these devices are integrated into safety-critical systems or where regulatory compliance mandates strict security controls. The absence of known exploits currently provides a window for proactive defense, but the risk of future exploitation remains high. European organizations relying on MB connect line products must prioritize vulnerability assessment and remediation to avoid operational and reputational damage.

1. Immediately restrict network access to mbNET.mini devices by implementing strict firewall rules and network segmentation to limit exposure to trusted management networks only. 2. Monitor network traffic for unusual or unexpected GET requests targeting the cloud server communication script, using IDS/IPS solutions with custom signatures if possible. 3. Engage with MB connect line support to obtain official patches or firmware updates addressing CVE-2025-41675 as soon as they become available. 4. If patches are not yet available, consider temporary mitigations such as disabling or restricting the vulnerable cloud communication features or applying input validation filters at network gateways. 5. Conduct thorough audits of all mbNET.mini devices to identify affected versions and ensure they are updated or isolated. 6. Implement multi-factor authentication and limit administrative privileges to reduce the risk of high-privilege account compromise. 7. Establish incident response procedures specific to OT environments to quickly detect and respond to potential exploitation attempts. 8. Educate operational staff about the risks and signs of exploitation related to this vulnerability.