CVE-2025-56107 is an OS command injection vulnerability identified in the Ruijie RG-BCR RG-BCR600W device, specifically within the Lua controller script located at /usr/lib/lua/luci/controller/admin/common_quick_config.lua. The vulnerability arises from insufficient input validation in the submit_wifi POST request handler, allowing an attacker with low privileges (PR:L) to inject arbitrary operating system commands. The vulnerability has a CVSS v3.1 base score of 8.8, indicating high severity, with attack vector being network (AV:N), low attack complexity (AC:L), no user interaction (UI:N), and scope unchanged (S:U). Successful exploitation can lead to full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) of the device. The device is typically used in enterprise or service provider network environments, making it a critical point of failure. Although no public exploits are currently known, the vulnerability's characteristics make it a prime candidate for exploitation once weaponized. The lack of available patches at the time of publication increases the urgency for defensive measures. The CWE-78 classification confirms this is a classic OS command injection issue, which can be exploited remotely to execute arbitrary commands on the underlying operating system, potentially leading to device takeover, lateral movement, or network disruption.

For European organizations, exploitation of this vulnerability could result in severe operational disruptions, data breaches, and unauthorized control over network infrastructure. Given that Ruijie devices are used in telecommunications, enterprise networks, and critical infrastructure, attackers could leverage this vulnerability to intercept or manipulate sensitive communications, disrupt services, or establish persistent footholds. This could impact sectors such as finance, healthcare, government, and utilities, where network reliability and data confidentiality are paramount. The ability to execute arbitrary commands remotely without user interaction increases the risk of rapid compromise and propagation within networks. Additionally, compromised devices could be used as launch points for further attacks against European targets or to exfiltrate sensitive data. The lack of patches at present means organizations must rely on network-level mitigations, increasing operational complexity and risk.

1. Immediately restrict access to the management interfaces of Ruijie RG-BCR600W devices to trusted networks and IP addresses using firewall rules or access control lists. 2. Implement network segmentation to isolate vulnerable devices from critical systems and sensitive data repositories. 3. Monitor network traffic for anomalous POST requests targeting the submit_wifi endpoint, employing intrusion detection/prevention systems with custom signatures. 4. Disable or limit the use of the vulnerable quick configuration feature if possible until a patch is available. 5. Engage with Ruijie support channels to obtain official patches or firmware updates as soon as they are released. 6. Conduct thorough audits of device configurations and logs to detect any signs of compromise. 7. Employ multi-factor authentication and strong credential policies on device management interfaces to reduce the risk of privilege escalation. 8. Prepare incident response plans specific to network device compromise scenarios to enable rapid containment and remediation.