CVE-2025-37165 is a vulnerability identified in the router mode configuration of Hewlett Packard Enterprise (HPE) Instant On Access Points, specifically version 3.0.0.0. The flaw arises because certain network configuration details are exposed to unintended interfaces, allowing an attacker to inspect impacted packets and extract sensitive internal network information. This vulnerability is remotely exploitable without requiring any privileges or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The confidentiality impact is high because attackers can gain knowledge of internal network topology, IP addressing, or routing details, which can facilitate further attacks such as lateral movement or targeted intrusions. However, the vulnerability does not affect the integrity or availability of the device or network. No patches or known exploits are currently reported, but the vulnerability has been publicly disclosed and assigned a CVSS score of 7.5, reflecting its high severity. The exposure of internal network configuration details can significantly aid attackers in reconnaissance phases, increasing the risk of subsequent exploitation of other vulnerabilities or misconfigurations within the network environment.

For European organizations, the exposure of internal network configuration details can lead to increased risk of targeted cyberattacks, including lateral movement, privilege escalation, and data exfiltration. Organizations in sectors such as finance, healthcare, government, and critical infrastructure that rely on HPE Instant On Access Points for secure network connectivity may face heightened threats from adversaries leveraging this vulnerability for reconnaissance. The confidentiality breach can undermine network segmentation and defense-in-depth strategies, potentially allowing attackers to map internal networks and identify high-value targets. Although the vulnerability does not directly impact system integrity or availability, the information leakage can be a stepping stone for more damaging attacks. Given the remote and unauthenticated nature of the exploit, attackers can operate stealthily without raising immediate alarms, increasing the risk of prolonged undetected intrusions.

1. Monitor HPE’s official channels closely for patches or firmware updates addressing CVE-2025-37165 and apply them promptly once available. 2. Restrict access to management and router interfaces of HPE Instant On Access Points using network segmentation and firewall rules to limit exposure to trusted networks only. 3. Implement network traffic monitoring and anomaly detection to identify unusual packet inspection or reconnaissance activities targeting access points. 4. Employ encryption and secure communication protocols within the network to reduce the risk of sensitive data interception. 5. Conduct regular network audits and vulnerability assessments focusing on wireless infrastructure to detect misconfigurations or exposures. 6. Educate network administrators on the risks associated with router mode configurations and encourage adherence to security best practices specific to HPE Instant On devices. 7. Consider deploying additional network security controls such as intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts.