CVE-2025-48462 is a denial-of-service vulnerability affecting Advantech Wireless Sensing and Equipment (WISE) products, specifically version A2.01 B00. The vulnerability allows an attacker to exhaust all available session slots by repeatedly initiating connections or login attempts, effectively blocking legitimate users from accessing the device or system. This attack targets the session management mechanism, exploiting the limited number of concurrent sessions supported by the product. Since the vulnerability leads to a denial of service by preventing user logins, it impacts the availability of the system rather than confidentiality or integrity. No authentication or user interaction is explicitly required for exploitation, suggesting that the attack surface is exposed to unauthenticated remote attackers. There are currently no known exploits in the wild, and no patches or mitigations have been officially released by Advantech at the time of publication. The lack of a CVSS score indicates that the vulnerability is newly disclosed and has not yet been fully assessed in terms of severity or impact. However, the technical details confirm that the vulnerability is related to resource exhaustion of session slots, which can be leveraged to disrupt normal operations of the WISE product.

For European organizations using Advantech WISE products, this vulnerability poses a significant risk to operational continuity. Advantech WISE devices are commonly used in industrial automation, environmental monitoring, and smart infrastructure, sectors critical to manufacturing, utilities, and smart city deployments across Europe. An attacker exploiting this vulnerability could cause service outages by denying legitimate users access to the device management interfaces, potentially halting monitoring or control functions. This could lead to delays in industrial processes, loss of real-time data collection, and impaired decision-making. The impact is primarily on availability, which in industrial and critical infrastructure contexts can translate into safety risks, financial losses, and regulatory non-compliance. Although no direct data breach or system compromise is indicated, the inability to access or manage these devices could indirectly affect system integrity and operational safety. The absence of known exploits reduces immediate threat levels but does not eliminate the risk, especially given the strategic importance of such devices in European industrial environments.

Given the nature of the vulnerability, European organizations should implement the following specific mitigations: 1) Limit network exposure of Advantech WISE devices by placing them behind firewalls or network segmentation to restrict access only to trusted management networks and IP addresses. 2) Monitor session usage and connection attempts to detect abnormal spikes indicative of session slot exhaustion attacks. 3) Implement rate limiting or connection throttling at the network perimeter or on intermediary devices to prevent rapid session creation attempts. 4) Engage with Advantech support to obtain any available patches or firmware updates addressing this vulnerability as soon as they are released. 5) Where possible, configure device session timeout settings to reduce the time sessions remain active, freeing slots more quickly. 6) Develop incident response plans that include procedures for manual intervention or device resets to restore access in case of denial-of-service conditions. 7) Conduct regular security assessments of the WISE deployment to identify and remediate potential exposure points. These measures go beyond generic advice by focusing on network-level controls, monitoring, and vendor engagement tailored to the specific session exhaustion attack vector.