CVE-2025-64444 is an OS command injection vulnerability identified in the Sony Network Communications Inc. NCP-HG100 Cellular model, specifically affecting firmware versions 1.4.48.16 and earlier. The vulnerability arises from improper neutralization of special elements in OS commands processed by the device's management interface. An attacker who has obtained valid authentication credentials to the management page can exploit this flaw to execute arbitrary operating system commands with root-level privileges. This level of access allows the attacker to fully compromise the device, potentially leading to unauthorized data access, device manipulation, or disruption of network services. The vulnerability does not require user interaction beyond authentication, and the attack vector is remote network access to the management interface. Although no public exploits have been reported yet, the vulnerability's nature and impact make it a critical concern for organizations relying on these devices. The CVSS v3.0 base score is 7.2, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity but requiring high privileges (valid credentials). The flaw underscores the importance of secure input validation and access controls in embedded network devices. Currently, no official patches or mitigation links are provided, emphasizing the need for vigilance and interim protective measures.

For European organizations, this vulnerability poses a significant risk to network security, especially for those deploying Sony NCP-HG100 Cellular models in critical communications infrastructure. Successful exploitation could lead to full device compromise, enabling attackers to intercept or manipulate sensitive communications, disrupt network availability, or use the device as a pivot point for further attacks within the corporate network. Confidentiality is at risk due to potential data leakage, integrity is compromised through unauthorized command execution, and availability may be affected by malicious disruption or device bricking. Given the root-level access gained, attackers could also install persistent backdoors or malware. The requirement for valid authentication reduces the risk somewhat but does not eliminate it, as credential theft or weak password policies could facilitate exploitation. This threat is particularly concerning for telecom providers, government agencies, and enterprises relying on these devices for secure cellular connectivity.

1. Monitor Sony's official channels for firmware updates addressing CVE-2025-64444 and apply patches immediately upon release. 2. Restrict access to the management interface by implementing network segmentation and firewall rules to allow only trusted IP addresses or VPN connections. 3. Enforce strong authentication policies, including complex passwords and multi-factor authentication where possible, to reduce the risk of credential compromise. 4. Regularly audit device access logs to detect unauthorized login attempts or suspicious activities. 5. Consider disabling remote management interfaces if not required or replacing affected devices with models not vulnerable to this issue. 6. Employ intrusion detection systems capable of recognizing anomalous command execution patterns on network devices. 7. Educate administrators on the risks of OS command injection and the importance of secure credential management. 8. If immediate patching is not possible, implement compensating controls such as network-level access restrictions and enhanced monitoring.