CVE-2026-78037 in LK100W
Summary
by MITRE • 08/28/2026
Xiiaozet LK100W is vulnerable to OS command injection through its web-based management interface. An authenticated attacker may be able to execute arbitrary operating system commands with elevated privileges, potentially resulting in unauthorized access to sensitive information or complete device compromise.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 08/28/2026
The Xiiaozet LK100W network switch presents a critical security vulnerability within its web-based management interface, specifically manifesting as an Operating System Command Injection flaw. This weakness allows for the execution of arbitrary commands on the underlying host operating system with elevated privileges, typically root or administrator level access. The presence of this vulnerability indicates that user-supplied input is not adequately sanitized before being passed to system-level shell interpreters. In a typical web application architecture, such as those found in managed network switches, administrative functions often require direct interaction with the device's firmware and operating system to perform configuration changes, status checks, or diagnostic operations. When these interactions are implemented without proper validation of input parameters, an attacker can inject malicious command sequences that bypass intended logic controls.
The operational impact of this vulnerability is severe due to the authentication requirement being a manageable barrier for determined attackers who may obtain credentials through phishing, brute force attacks, or credential stuffing campaigns. Once authenticated, the ability to execute arbitrary commands with elevated privileges effectively results in complete device compromise. This level of access allows an attacker to modify system configurations, install persistent backdoors, exfiltrate sensitive network topology data, and potentially pivot into other segments of the internal network. The vulnerability aligns closely with CWE-78 Improper Neutralization of Special Elements used in an OS Command, commonly known as OS Command Injection. This classification highlights the failure to neutralize special characters or sequences that have meaning within a command line context, such as semicolons, pipes, or ampersands, which can be exploited to chain multiple commands together for malicious effect.
From a tactical perspective, this vulnerability maps directly to MITRE ATT&CK technique T1059 Command and Scripting Interpreter, specifically under the sub-technique of Unix Shell Commands if the underlying OS is Linux-based, or Windows CMD/PowerShell depending on the firmware architecture. Attackers leveraging this flaw can achieve initial access through valid credentials and then escalate privileges to gain full control over the device. This compromises the integrity, availability, and confidentiality aspects of the network infrastructure managed by the switch. The compromised device can be used as a foothold for lateral movement, allowing attackers to intercept traffic, perform man-in-the-middle attacks on internal communications, or disrupt critical business operations by altering routing tables or VLAN configurations.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary defense is the application of vendor-provided firmware updates that patch this specific injection point. If an update is not immediately available, network administrators should restrict access to the web management interface using strict Access Control Lists (ACLs) limited only to trusted administrative IP addresses. Additionally, implementing multi-factor authentication for all administrative accounts can significantly reduce the risk of credential compromise leading to exploitation. From a development standpoint, this vulnerability underscores the necessity of adopting secure coding practices that strictly validate and sanitize all user inputs against a whitelist of allowed characters or commands rather than relying on blacklist approaches which are prone to bypasses. Regular security assessments and penetration testing should be conducted to identify similar injection points in other management interfaces before they can be exploited by adversaries seeking persistent access to critical network infrastructure.