CVE-2025-37178 is a vulnerability identified in Hewlett Packard Enterprise's ArubaOS, specifically affecting versions 8.10.0.0 and 8.12.0.0. The flaw arises from multiple out-of-bounds read conditions within a system component responsible for handling certain data buffers. The root cause is insufficient validation of maximum buffer size values, which allows the process to read beyond the allocated memory region. This improper memory access can lead to a crash of the affected process, resulting in a denial-of-service (DoS) condition. The vulnerability is remotely exploitable without requiring authentication or user interaction, increasing its attack surface. However, it does not compromise confidentiality or integrity, as it only impacts availability. No known exploits have been reported in the wild to date. The CVSS v3.1 base score is 5.3, reflecting a medium severity level. The vulnerability's impact is limited to potential service disruption, which could affect network availability and reliability in environments using ArubaOS for wireless and wired network management. ArubaOS is widely deployed in enterprise and service provider networks, making this vulnerability relevant for organizations relying on HPE's networking solutions. The lack of patches at the time of publication necessitates proactive monitoring and mitigation strategies to reduce risk until updates are available.

For European organizations, the primary impact of CVE-2025-37178 is the potential denial-of-service of ArubaOS-managed network components. This can lead to network outages or degraded performance, affecting business continuity, especially in sectors dependent on reliable network infrastructure such as finance, healthcare, telecommunications, and critical infrastructure. Disruptions could impair internal communications, remote access, and connectivity to cloud services. Although the vulnerability does not expose sensitive data or allow unauthorized control, the availability impact can indirectly affect operational integrity and cause financial and reputational damage. Organizations with large-scale ArubaOS deployments or those using it in high-availability environments are at greater risk. The absence of known exploits reduces immediate threat but does not eliminate the risk of future exploitation. European entities should consider the potential for targeted attacks exploiting this vulnerability to disrupt services, particularly in the context of increasing cyber threats against critical infrastructure.

1. Monitor Hewlett Packard Enterprise advisories closely and apply security patches for ArubaOS versions 8.10.0.0 and 8.12.0.0 as soon as they become available. 2. Implement network segmentation to isolate ArubaOS devices from less trusted network segments, limiting exposure to potential attackers. 3. Deploy intrusion detection and prevention systems (IDS/IPS) with signatures or anomaly detection rules tailored to identify unusual traffic patterns or attempts to exploit buffer handling flaws. 4. Conduct regular network traffic analysis and device health monitoring to detect early signs of process crashes or service disruptions. 5. Restrict remote management access to ArubaOS devices using VPNs and strong access controls to reduce the attack surface. 6. Maintain up-to-date backups and incident response plans to quickly recover from potential denial-of-service events. 7. Engage in threat intelligence sharing with industry peers and national cybersecurity centers to stay informed about emerging exploits targeting ArubaOS. 8. Consider deploying redundant network paths and failover mechanisms to minimize service impact if an ArubaOS device becomes unavailable.