CVE-2026-101260 in ZHOME A0101
Summary
by MITRE • 09/29/2026
A vulnerability was detected in Ziroom ZHOME A0101 1.0.1.0. Affected by this issue is some unknown functionality of the file /api/ZRnetwork/firstLogin. Performing a manipulation of the argument firstLogin results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may 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 • 09/29/2026
The Ziroom ZHOME A0101 smart home gateway, specifically version 1.0.1.0, contains a critical remote code execution vulnerability within its network management interface. This device serves as the central hub for residential automation systems, managing connectivity between various IoT endpoints and external control applications. The specific weakness resides in the /api/ZRnetwork/firstLogin endpoint, which is designed to handle initial authentication or configuration synchronization during the setup phase of the gateway. Despite being labeled as a first-login routine, this API call processes user-supplied input without adequate sanitization or validation mechanisms. This oversight allows an attacker who can reach the device over the network to inject arbitrary operating system commands directly into the underlying shell environment that executes these API requests.
The technical nature of this flaw is classified under CWE-78, which denotes Improper Neutralization of Special Elements used in an OS Command (OS Command Injection). The vulnerability arises because the application takes data from the firstLogin argument and passes it to a system-level command interpreter without filtering dangerous characters such as semicolons, pipes, or ampersands. This lack of input validation means that instead of executing only the intended network configuration logic, the server executes whatever commands are embedded within the malicious payload. Since this functionality is exposed via an API endpoint accessible over the local area network and potentially through port forwarding if misconfigured, it presents a significant attack surface for remote exploitation.
The operational impact of this vulnerability is severe due to its potential for full system compromise. An attacker who successfully exploits this command injection can execute commands with the privileges of the service account running the web server or gateway daemon. In many embedded Linux environments, these services run as root or have elevated permissions necessary to manage network interfaces and hardware peripherals. Consequently, an adversary could gain complete control over the device, allowing them to pivot into other parts of the home network, intercept sensitive data transmitted by connected smart devices, or use the compromised gateway as a foothold for further lateral movement within the local infrastructure. The fact that public exploits are available significantly lowers the barrier to entry for attackers, making automated scanning and opportunistic attacks highly probable in environments where this device is deployed without proper segmentation.
From an offensive security perspective, this vulnerability aligns with MITRE ATT&CK techniques related to Command and Scripting Interpretation (T1059) and potentially Remote Services such as SSH or Web Services depending on the specific execution vector utilized by the exploit tool. The ability to execute arbitrary commands remotely places this flaw in a high-severity category, comparable to other critical IoT vulnerabilities that have led to widespread botnet infections in the past. The lack of response from the vendor further exacerbates the risk, as there is no official patch or mitigation guidance available to users who may still be running vulnerable firmware versions.
To mitigate the risks associated with this vulnerability, immediate action is required on the part of network administrators and end-users. Since a software fix has not been provided by the manufacturer due to their non-responsiveness, defense-in-depth strategies must be employed at the network level. The most effective mitigation involves isolating the Ziroom ZHOME gateway within a separate VLAN or guest network segment that restricts its communication to only necessary external endpoints and prevents it from accessing critical internal resources such as file servers, workstations, or other sensitive IoT devices. Additionally, firewall rules should be configured to block inbound traffic to port 80 and any other ports associated with the web interface unless absolutely required for management purposes. Users are also advised to change default credentials if applicable and monitor network logs for unusual outbound connections originating from the gateway IP address, which may indicate active exploitation attempts or successful compromise. Until a patched firmware is released by the vendor, treating this device as untrusted on any network segment containing valuable data remains the safest operational practice.