CVE-2025-11298 is a command injection vulnerability identified in the Belkin F9K1015 router, specifically version 1.00.10. The vulnerability resides in an unspecified function within the /goform/formSetWanStatic endpoint, where manipulation of the m_wan_ipaddr argument allows an attacker to inject arbitrary commands. This endpoint is likely part of the router's web management interface that handles WAN static IP configuration. The vulnerability 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 attack complexity is low, and the vulnerability impacts confidentiality, integrity, and availability at a low level. The vendor was notified but has not responded or issued a patch, and while no known exploits are currently in the wild, the exploit details have been publicly disclosed, increasing the risk of exploitation. The CVSS 4.0 score of 5.3 classifies this as a medium severity vulnerability. The lack of vendor response and patch availability means affected devices remain vulnerable. The vulnerability could allow an attacker to execute arbitrary commands on the router, potentially leading to device compromise, network traffic interception, or pivoting to internal networks.

For European organizations using the Belkin F9K1015 router, this vulnerability poses a tangible risk. Compromise of the router could lead to interception or manipulation of network traffic, disruption of internet connectivity, or unauthorized access to internal network resources. Given that the vulnerability can be exploited remotely without authentication, attackers could leverage this flaw to gain persistent footholds within organizational networks. This is particularly concerning for small and medium enterprises or branch offices that may use consumer-grade routers like the F9K1015 without rigorous network segmentation or monitoring. The impact on confidentiality could include exposure of sensitive data traversing the network, while integrity and availability impacts could involve malicious configuration changes or denial of service. The absence of a patch and vendor engagement increases the window of exposure, making timely mitigation critical.

Organizations should immediately assess their network inventory to identify any deployments of the Belkin F9K1015 router running firmware version 1.00.10. As no official patch is available, mitigation should focus on network-level controls: restrict access to the router's management interface by implementing firewall rules that limit administrative access to trusted IP addresses or internal management VLANs. Disable remote management features if enabled. Employ network segmentation to isolate vulnerable devices from critical infrastructure. Monitor network traffic for unusual activity indicative of exploitation attempts, such as unexpected command execution or configuration changes. Consider replacing affected devices with models from vendors that provide timely security updates. Additionally, implement intrusion detection or prevention systems capable of recognizing command injection patterns targeting the /goform/formSetWanStatic endpoint. Regularly review vendor communications for any forthcoming patches or advisories.