CVE-2025-37161 is a denial-of-service vulnerability identified in the web-based management interface of Hewlett Packard Enterprise's Aruba Networking 100 Series Cellular Bridge, specifically version 10.7.0.0. The vulnerability arises due to improper handling of certain requests by the management interface, which can be exploited remotely without authentication. An attacker can send crafted requests that cause the device to crash, leading to a denial of service condition. The affected devices become unresponsive and require manual intervention to reboot, which disrupts network connectivity and operations dependent on these cellular bridges. The vulnerability is classified under CWE-400, indicating a resource exhaustion or denial of service issue. The CVSS v3.1 base score of 7.5 reflects a high severity, with attack vector being network-based, no privileges or user interaction required, and the impact confined to availability. Although no known exploits have been reported in the wild, the ease of exploitation and potential operational impact make this a critical concern for network administrators. The lack of an available patch at the time of publication necessitates immediate mitigation strategies to prevent exploitation. The Aruba 100 Series Cellular Bridge is commonly used in enterprise and industrial environments to provide cellular connectivity, making this vulnerability relevant to organizations relying on these devices for critical communications.

The primary impact of CVE-2025-37161 is the disruption of network operations due to denial of service on HPE Aruba 100 Series Cellular Bridge devices. For European organizations, this can translate into significant operational downtime, especially in sectors relying on cellular connectivity for remote sites, IoT deployments, or failover network paths. Critical infrastructure sectors such as energy, transportation, and manufacturing that use these devices for cellular bridging may experience interruptions affecting service delivery and safety systems. The inability of the device to reboot automatically after a crash increases recovery time and operational costs. Additionally, the unauthenticated nature of the exploit means that attackers do not need credentials or user interaction, increasing the risk of widespread exploitation if the vulnerability is targeted. While confidentiality and integrity are not directly impacted, the availability impact alone can have cascading effects on business continuity and regulatory compliance within the European Union and other jurisdictions with strict uptime requirements.

1. Immediately restrict access to the web-based management interface of the affected HPE Aruba 100 Series Cellular Bridge devices by implementing network segmentation and firewall rules limiting management traffic to trusted IP addresses only. 2. Monitor HPE advisories closely for the release of official patches or firmware updates addressing CVE-2025-37161 and apply them promptly once available. 3. Implement network intrusion detection/prevention systems (IDS/IPS) to detect and block suspicious traffic patterns targeting the management interface. 4. Employ strong network access controls and consider disabling the web management interface if remote management is not required or use alternative secure management methods such as VPNs or out-of-band management. 5. Develop and test incident response procedures to quickly identify and recover from denial of service events caused by this vulnerability, including manual reboot protocols. 6. Conduct regular vulnerability assessments and penetration testing focusing on network devices to identify similar weaknesses proactively. 7. Educate network operations teams about this vulnerability and the importance of monitoring device health and logs for signs of exploitation attempts.