The vulnerability identified as CVE-2025-60548 affects the D-Link DIR600L Ax router firmware version FW116WWb01. It is a classic buffer overflow vulnerability located in the function formLanSetupRouterSettings, specifically triggered by the curTime parameter. Buffer overflow vulnerabilities occur when a program writes more data to a buffer than it can hold, potentially overwriting adjacent memory. In this case, the overflow could allow an attacker to manipulate the router's memory, leading to arbitrary code execution or a denial of service condition. The vulnerability is exploitable remotely via the router's management interface, which typically listens on the local network or possibly exposed WAN interfaces if misconfigured. No authentication is required to exploit this vulnerability, increasing the risk profile. Although no public exploits have been reported yet, the vulnerability's presence in a widely deployed consumer router model raises concerns about potential future exploitation. The lack of an available patch or mitigation from the vendor at the time of publication means that affected users remain vulnerable. The router model is popular in European markets, especially among home users and small enterprises, which could lead to widespread impact if exploited. The absence of a CVSS score necessitates an assessment based on the vulnerability's characteristics: remote code execution potential, no authentication required, and the critical role of routers in network security.

For European organizations, the impact of CVE-2025-60548 could be significant. The D-Link DIR600L Ax router is commonly used in residential and small business environments, which often serve as entry points to corporate networks or remote work setups. Exploitation could allow attackers to gain control over the router, enabling interception or manipulation of network traffic, deployment of malware, or pivoting to internal networks. This could lead to confidentiality breaches, integrity violations, and availability disruptions. Small businesses and home offices that rely on this router without additional security layers are particularly vulnerable. The lack of authentication requirement and potential for remote exploitation increase the risk of widespread attacks, especially if routers are exposed to the internet or poorly segmented. The vulnerability could also be leveraged in botnet campaigns or as part of larger multi-stage attacks targeting European infrastructure. The absence of known exploits currently limits immediate impact, but the risk remains high until mitigations or patches are deployed.

1. Immediately restrict access to the router's management interface by disabling remote WAN access and limiting LAN access to trusted devices only. 2. Implement network segmentation to isolate routers from critical internal networks and sensitive assets. 3. Monitor network traffic for unusual patterns or attempts to access the formLanSetupRouterSettings function or curTime parameter. 4. Encourage users to change default credentials and ensure strong authentication mechanisms are in place for router management. 5. Apply any vendor patches or firmware updates as soon as they become available. 6. If possible, replace affected devices with models that have confirmed security updates or better security track records. 7. Educate users about the risks of exposing router management interfaces and the importance of secure configurations. 8. Employ intrusion detection/prevention systems (IDS/IPS) tuned to detect exploitation attempts targeting this vulnerability. 9. Regularly audit network devices for firmware versions and configuration compliance to identify vulnerable routers. 10. Consider deploying network-level protections such as firewalls to block unauthorized access to router management ports.