CVE-2025-26237 in DI-7001 MINI
Summary
by MITRE • 08/24/2026
D-Link DI-7001 MINI_5G 19.10.31A1 contains a code execution vulnerability in the flag parameter of msp_info, which can be exploited to run arbitrary commands.
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Analysis
by VulDB Data Team • 08/24/2026
The D-Link DI-7001 MINI_5G router running firmware version 19.10.31A1 is susceptible to a critical remote code execution vulnerability within its management interface. This flaw resides specifically in the handling of the flag parameter associated with the msp_info function, which processes information related to Mobile Service Platform or similar device management protocols. The vulnerability arises from insufficient input validation and sanitization mechanisms when processing user-supplied data passed through this specific endpoint. An attacker who can interact with the affected component is able to inject malicious shell commands directly into the parameter value without proper escaping or filtering of special characters that are interpreted by the underlying operating system's command interpreter.
This type of flaw represents a classic instance of Command Injection, categorized under CWE-78 in the Common Weakness Enumeration database. The technical mechanism involves the application constructing an OS-level command string using unsanitized user input and executing it via functions such as system() or exec(). Because the flag parameter is processed with elevated privileges typical for administrative interfaces on embedded devices, successful exploitation allows a remote attacker to execute arbitrary commands with the same permissions as the vulnerable service. This typically means running code as root or an equivalent high-privilege account within the device's Linux-based operating environment.
The operational impact of this vulnerability is severe and comprehensive. Once command execution is achieved, an adversary can compromise the confidentiality, integrity, and availability of the network infrastructure protected by the router. Specific consequences include the ability to read sensitive configuration files containing Wi-Fi passwords or ISP credentials, modify routing tables to facilitate man-in-the-middle attacks, install persistent backdoors for long-term access, or pivot into internal private networks that are otherwise shielded from direct internet exposure. In some cases, attackers may also leverage this access to mine cryptocurrency using the device's computational resources or incorporate the compromised router into a botnet for distributed denial-of-service attacks against other targets.
From an offensive security perspective, such vulnerabilities align with techniques described in the MITRE ATT&CK framework, particularly those involving remote services and command execution via network protocols like HTTP or proprietary management interfaces. The lack of proper input validation is a fundamental design error that bypasses standard defense-in-depth strategies expected in secure software development lifecycles for Internet of Things devices.
Mitigation requires immediate action by the device owner to update the firmware to a patched version released by D-Link, if available, which addresses the input sanitization logic within the msp_info handler. If an official patch is not yet provided, administrators should restrict access to the management interface through network segmentation, ensuring it is only accessible from trusted internal subnets rather than exposed directly to the internet. Additionally, disabling unnecessary remote management features and changing default administrative credentials can reduce the attack surface. Long-term remediation involves enforcing strict input validation policies that whitelist allowed characters for all parameters passed to system commands, thereby eliminating the possibility of command injection at the source code level.