CVE-2025-12313 Overview
A command injection vulnerability has been discovered in D-Link DI-7001 MINI routers affecting firmware versions 19.09.19A1 and 24.04.18B1. The vulnerability exists in an unknown function within the /msp_info.htm file, where improper handling of the cmd argument allows attackers to inject and execute arbitrary system commands. This flaw can be exploited remotely by authenticated attackers, potentially leading to complete device compromise.
Critical Impact
Remote attackers with low privileges can execute arbitrary commands on affected D-Link routers, potentially compromising network infrastructure and enabling lateral movement within the network.
Affected Products
- D-Link DI-7001MINI-8G Firmware version 19.09.19A1
- D-Link DI-7001MINI-8G Firmware version 24.04.18B1
- D-Link DI-7001MINI-8G Hardware revisions A1 and B1
Discovery Timeline
- October 27, 2025 - CVE-2025-12313 published to NVD
- November 3, 2025 - Last updated in NVD database
Technical Details for CVE-2025-12313
Vulnerability Analysis
This command injection vulnerability (CWE-77) stems from insufficient input validation in the D-Link DI-7001 MINI router's web management interface. The affected endpoint /msp_info.htm processes the cmd parameter without proper sanitization, allowing malicious input to be interpreted as system commands. This is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-77 (Improper Neutralization of Special Elements used in a Command).
The vulnerability is exploitable over the network and requires low-privilege authentication to trigger. Successful exploitation grants attackers the ability to execute arbitrary commands with the privileges of the web server process, typically running as root on embedded devices like the DI-7001 MINI.
Root Cause
The root cause of this vulnerability lies in the failure to properly sanitize user-supplied input before passing it to system shell functions. The cmd argument in /msp_info.htm is directly incorporated into command execution routines without filtering special characters such as semicolons, pipes, or command substitution operators. This allows attackers to break out of the intended command context and inject additional malicious commands.
Attack Vector
The attack can be launched remotely over the network against the router's web management interface. An attacker with valid low-level credentials can craft malicious HTTP requests targeting the /msp_info.htm endpoint. By manipulating the cmd parameter with shell metacharacters and command injection payloads, the attacker can execute arbitrary system commands on the underlying operating system.
The vulnerability manifests in the web interface's handling of the cmd parameter within /msp_info.htm. Attackers can append shell metacharacters such as semicolons (;), pipes (|), or command substitution syntax to inject additional commands. When the router processes these malformed requests, the injected commands are executed with the privileges of the web server process. For detailed technical information, see the GitHub Issue documenting this CVE.
Detection Methods for CVE-2025-12313
Indicators of Compromise
- Unusual HTTP requests to /msp_info.htm containing shell metacharacters such as ;, |, &, or backticks in the cmd parameter
- Unexpected outbound connections from the router to external IP addresses
- Suspicious process spawning from the web server process on the device
- Unauthorized configuration changes or new user accounts on the router
Detection Strategies
- Implement web application firewall (WAF) rules to detect command injection patterns in requests to D-Link router management interfaces
- Monitor network traffic for HTTP requests to /msp_info.htm with encoded or special characters in query parameters
- Deploy intrusion detection system (IDS) signatures to identify command injection attempts targeting D-Link devices
Monitoring Recommendations
- Enable detailed logging on network perimeter devices to capture all traffic to and from D-Link router management interfaces
- Implement network segmentation to isolate router management interfaces from untrusted networks
- Configure SIEM alerts for anomalous activity patterns associated with embedded device exploitation
How to Mitigate CVE-2025-12313
Immediate Actions Required
- Restrict access to the router's web management interface to trusted IP addresses only
- Disable remote management access if not required for operations
- Place affected devices behind a firewall with strict access control lists
- Monitor affected devices for signs of compromise and unauthorized access
Patch Information
At the time of publication, no official vendor patch has been released for this vulnerability. Organizations should monitor the D-Link Security Homepage and VulDB entry #329985 for security updates. Until a patch is available, implement the recommended workarounds to reduce exposure.
Workarounds
- Disable WAN-side access to the web management interface to prevent remote exploitation
- Implement network access control lists (ACLs) to restrict management interface access to specific trusted IP ranges
- Consider deploying a VPN for remote administration instead of exposing the management interface directly
- If the device is end-of-life or unsupported, evaluate replacement with actively maintained alternatives
# Example: Restrict access to management interface via firewall
# Block external access to router management port
iptables -A INPUT -p tcp --dport 80 -s 192.168.1.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
