CVE-2026-2000 in DCME-320
Summary
by MITRE • 02/06/2026
A vulnerability was found in DCN DCME-320 up to 20260121. Impacted is the function apply_config of the file /function/system/basic/bridge_cfg.php of the component Web Management Backend. Performing a manipulation of the argument ip_list results in command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 02/18/2026
This vulnerability resides within the DCN DCME-320 network device firmware where a command injection flaw exists in the web management backend component. The specific function affected is apply_config located in the file /function/system/basic/bridge_cfg.php, which processes network configuration parameters through the ip_list argument. This represents a critical security weakness that allows remote attackers to execute arbitrary commands on the affected device by manipulating the ip_list parameter during configuration application. The vulnerability's classification aligns with CWE-77 which specifically addresses command injection flaws in software systems. The attack vector is remotely exploitable, meaning an unauthenticated attacker can leverage this weakness without requiring physical access to the device or prior authentication credentials. Given that the exploit has been made publicly available, the risk exposure is significantly elevated as malicious actors can readily implement the attack without requiring advanced technical skills or custom development.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete system compromise and potential network infiltration. Successful exploitation enables attackers to execute arbitrary commands with the privileges of the web server process, potentially allowing full control over the device's network configuration, data access, and system operations. This weakness creates a persistent backdoor that could be used for ongoing network surveillance, data exfiltration, or as a launching point for further attacks against adjacent network segments. The affected device serves as a critical network infrastructure component, making the potential impact substantial for organizations relying on DCN DCME-320 devices for their network operations. The vulnerability's presence in the web management backend component particularly amplifies risk since this interface typically provides administrative access to network configurations and device management functions.
Security professionals should consider this vulnerability in the context of the MITRE ATT&CK framework, specifically mapping it to techniques such as T1059.001 for command and script injection and T1021.001 for remote services. The lack of vendor response despite early disclosure creates additional operational concerns for affected organizations, as they must rely on community research and public exploits rather than vendor-provided patches or mitigations. Organizations should implement immediate network segmentation strategies to isolate affected devices and monitor for suspicious network activity that might indicate exploitation attempts. The absence of vendor response also suggests potential gaps in the device's security lifecycle management and support infrastructure, which organizations should consider when evaluating long-term security strategies for their network infrastructure. Proper input validation and sanitization mechanisms should be implemented at the application level to prevent parameter manipulation that could lead to command execution.
Organizations should prioritize immediate remediation efforts including applying vendor patches if available, implementing network monitoring to detect exploitation attempts, and considering device replacement or upgrade strategies. The vulnerability's public exploit availability necessitates urgent action to prevent potential compromise of network infrastructure. Network administrators should also review and harden the web management interface configurations, disable unnecessary services, and implement strict access controls to limit potential attack surfaces. Regular security assessments and vulnerability scanning should be enhanced to identify similar weaknesses in other network infrastructure components, as this vulnerability demonstrates the critical importance of input validation in web-based management interfaces. The incident highlights the need for robust security practices in embedded network devices and underscores the importance of maintaining up-to-date security patches for all network infrastructure components.