CVE-2025-14252 identifies an improper access control vulnerability in the Advantech SUSI driver (susi.sys), a component commonly used in Advantech embedded and industrial computing platforms. This vulnerability allows an attacker with low-level privileges to perform unauthorized read and write operations on arbitrary memory locations, I/O ports, and model-specific registers (MSRs). Such capabilities enable attackers to escalate privileges to system or kernel level, execute arbitrary code with elevated rights, and disclose sensitive information from protected memory areas. The flaw stems from insufficient access control checks within the driver, permitting unauthorized access to critical hardware interfaces. The affected versions include SUSI 5.0.24335 and earlier. Exploitation requires local access but no user interaction or authentication beyond low privileges. The CVSS 4.0 base score of 8.5 reflects the high impact on confidentiality, integrity, and availability, combined with relatively low attack complexity and no need for user interaction. No public exploits have been reported yet, but the vulnerability poses a significant risk to systems relying on Advantech SUSI for hardware management, especially in industrial control and embedded environments.

For European organizations, especially those in industrial automation, manufacturing, energy, and critical infrastructure sectors, this vulnerability presents a serious threat. Advantech devices are widely used in industrial IoT and embedded systems across Europe, where unauthorized privilege escalation can lead to full system compromise. Attackers could manipulate hardware-level operations, disrupt industrial processes, steal sensitive operational data, or implant persistent malware. The ability to execute arbitrary code at a high privilege level could also facilitate lateral movement within networks, increasing the risk of broader operational disruption and data breaches. Given the critical nature of affected systems, exploitation could impact operational continuity, safety, and compliance with European data protection regulations.

Organizations should prioritize applying security patches from Advantech as soon as they become available to address this vulnerability. Until patches are released, restrict local access to systems running vulnerable SUSI driver versions by enforcing strict physical and logical access controls. Implement application whitelisting and endpoint detection to monitor for unusual driver or kernel-level activity. Employ network segmentation to isolate critical industrial systems and limit exposure. Regularly audit and update device firmware and drivers to ensure they are current. Additionally, conduct thorough vulnerability assessments on embedded and industrial devices to identify SUSI driver presence and version. Train IT and OT security teams to recognize signs of privilege escalation and unauthorized hardware access attempts.