CVE-2025-14751 is a vulnerability identified in the Weintek cMT3072XH human-machine interface (HMI) device, specifically in version 20200630. The issue is categorized under CWE-620, which involves unverified password changes. In this case, a low-privileged user can bypass the normal authentication process and change account passwords without confirming the current authentication state. This lack of verification allows unauthorized users to escalate privileges, potentially gaining administrative control over the device. The vulnerability is remotely exploitable over the network (AV:N), requires low attack complexity (AC:L), and does not require any authentication (AT:N) or user interaction (UI:N). The impact on confidentiality, integrity, and availability is high (VC:H, VI:H, VA:H), indicating that an attacker could fully compromise the device. The vulnerability does not require scope changes or authentication, making it easier to exploit in environments where the device is accessible. Although no public exploits are known at this time, the device's role in industrial control systems (ICS) and critical infrastructure makes this a significant security concern. The vulnerability was published on January 22, 2026, and is tracked under CVSS version 4.0 with a score of 8.7, reflecting its high severity. The lack of available patches at the time of publication increases the urgency for organizations to implement compensating controls.

For European organizations, especially those operating in industrial automation, manufacturing, energy, and critical infrastructure sectors, this vulnerability poses a substantial risk. Exploitation could lead to unauthorized privilege escalation on Weintek cMT3072XH devices, allowing attackers to manipulate control systems, disrupt operations, or cause safety incidents. The compromise of HMIs can lead to loss of operational integrity and availability, potentially resulting in production downtime, safety hazards, and financial losses. Additionally, attackers gaining administrative access could pivot to other parts of the network, increasing the scope of compromise. Given the widespread use of Weintek devices in European industrial environments, the impact could be broad, affecting supply chains and critical services. The vulnerability's network accessibility and lack of required authentication make it a tempting target for threat actors aiming to disrupt industrial processes or conduct espionage. The absence of known exploits currently provides a window for proactive defense, but the risk of future exploitation remains high.

1. Immediately restrict network access to Weintek cMT3072XH devices by implementing strict firewall rules and network segmentation to isolate these devices from general IT networks and the internet. 2. Monitor device logs and network traffic for unusual password change attempts or unauthorized access patterns. 3. Employ strong network access controls such as VPNs or jump hosts for any remote management of these devices. 4. Where possible, disable or limit low-privileged user accounts that could be leveraged to exploit this vulnerability. 5. Engage with Weintek for any available firmware updates or patches addressing this vulnerability and apply them promptly once released. 6. Implement multi-factor authentication (MFA) on management interfaces if supported to add an additional layer of verification. 7. Conduct regular security assessments and penetration tests focusing on industrial control systems to detect similar vulnerabilities. 8. Educate operational technology (OT) personnel about this vulnerability and the importance of monitoring and controlling access to HMIs. 9. Consider deploying intrusion detection/prevention systems (IDS/IPS) tailored for ICS environments to detect exploitation attempts. 10. Maintain an incident response plan specific to ICS environments to quickly respond to any compromise.