CVE-2025-11292 is a command injection vulnerability identified in the Belkin F9K1015 router, specifically affecting firmware version 1.00.10. The vulnerability resides in an unspecified function within the /goform/formBSSetSitesurvey endpoint, where manipulation of the 'wan_ipaddr' argument allows an attacker to inject arbitrary commands. This flaw can be exploited remotely without requiring user interaction or authentication, as indicated by the CVSS vector (AV:N/AC:L/AT:N/UI:N/PR:L). The vulnerability's exploitation could enable attackers to execute system-level commands on the affected device, potentially leading to full compromise of the router. The vendor, Belkin, was notified early but has not responded or issued a patch. Although the CVSS score is moderate at 5.3, the availability of a public exploit increases the risk. The vulnerability impacts the confidentiality, integrity, and availability of the device, as attackers could intercept or manipulate network traffic, disrupt connectivity, or use the device as a foothold for further network intrusion. The lack of authentication requirement and remote exploitability make this a significant risk for networks relying on this router model.

For European organizations, the impact of this vulnerability can be substantial, especially for small and medium enterprises or home office setups that use the Belkin F9K1015 router. Successful exploitation could allow attackers to gain unauthorized control over network traffic, potentially intercepting sensitive data or injecting malicious payloads. This could lead to data breaches, disruption of business operations, or use of compromised routers as part of botnets or lateral movement within corporate networks. The vulnerability also poses risks to availability, as attackers could disrupt internet connectivity or degrade network performance. Given the public availability of exploits and the absence of vendor patches, European organizations face an elevated risk of targeted attacks or opportunistic exploitation. Critical infrastructure or organizations handling sensitive data could be particularly vulnerable if these routers are deployed in their environments.

Since no official patch is available from Belkin, European organizations should take immediate practical steps: 1) Identify and inventory all Belkin F9K1015 devices running firmware version 1.00.10 within their networks. 2) Where possible, replace affected devices with alternative routers from vendors with active security support. 3) If replacement is not immediately feasible, restrict remote access to the router's management interfaces by implementing network segmentation and firewall rules to block external access to the /goform/formBSSetSitesurvey endpoint. 4) Monitor network traffic for unusual activity indicative of exploitation attempts, such as unexpected outbound connections or command execution patterns. 5) Employ intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics targeting known exploit patterns for this vulnerability. 6) Educate network administrators about the risk and ensure strong network perimeter defenses. 7) Regularly review and update router configurations to minimize exposure, disabling unnecessary services or remote management features. These steps go beyond generic advice by focusing on compensating controls and proactive detection in the absence of vendor patches.