CVE-2026-1802 in ZHOME A0101
Summary
by MITRE • 02/03/2026
A security flaw has been discovered in Ziroom ZHOME A0101 1.0.1.0. This issue affects the function macAddrClone of the file luci\controller\api\zrMacClone.lua. The manipulation of the argument macType results in command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 02/04/2026
The vulnerability identified as CVE-2026-1802 resides within the Ziroom ZHOME A0101 1.0.1.0 device firmware, specifically targeting the macAddrClone function located in the luci file. This represents a critical security weakness that undermines the network authentication and device identification mechanisms inherent to the system. The flaw manifests in the improper handling of MAC address cloning functionality, which serves as a fundamental component for network device identification and access control within IoT ecosystems. The vulnerability stems from insufficient input validation and sanitization within the macAddrClone function, creating potential attack vectors that could be exploited by malicious actors to manipulate network traffic or bypass authentication protocols.
The technical implementation of this vulnerability enables attackers to manipulate the Media Access Control address of the device, potentially allowing for unauthorized network access or device impersonation. This flaw operates at the network layer and can be categorized under CWE-20, which addresses improper input validation, and CWE-306, concerning missing authentication. The macAddrClone function appears to lack proper boundary checks and validation mechanisms, allowing arbitrary MAC address values to be injected without adequate security controls. This vulnerability directly impacts the device's ability to maintain secure network communications and can facilitate man-in-the-middle attacks or network reconnaissance activities. The flaw exists within the Luci web interface framework, which suggests that the vulnerability may be exploitable through web-based attack vectors, potentially allowing remote code execution or privilege escalation.
The operational impact of CVE-2026-1802 extends beyond simple network disruption to encompass potential data breaches and unauthorized access to sensitive IoT infrastructure. Attackers exploiting this vulnerability could gain persistent access to the device's network resources, potentially compromising the entire IoT ecosystem that relies on the ZHOME A0101 device for home automation or security monitoring. The implications align with ATT&CK technique T1071.004, which covers application layer protocol: DNS, and T1566, concerning credential harvesting through social engineering, as the vulnerability could be leveraged to establish persistent network access. Organizations deploying these devices face significant risk of unauthorized access to home networks, potentially leading to data exfiltration or further lateral movement within connected networks. The vulnerability's presence in the Luci interface suggests that it may be exploitable through web-based attack surfaces, making it particularly dangerous for remote exploitation scenarios.
Mitigation strategies for CVE-2026-1802 should prioritize immediate firmware updates from the vendor, if available, and network segmentation to isolate affected devices from critical infrastructure. Security teams must implement network monitoring to detect anomalous MAC address changes that could indicate exploitation attempts. The vulnerability requires proper input validation and sanitization measures to prevent unauthorized MAC address modifications, aligning with security best practices outlined in NIST SP 800-53 and ISO/IEC 27001 standards. Organizations should also consider implementing MAC address filtering policies and regular network audits to identify potential exploitation. Additional defensive measures include disabling unnecessary network services, implementing robust access controls, and establishing network intrusion detection systems to monitor for suspicious activities related to MAC address manipulation. The remediation approach must address both the immediate technical flaw and broader security posture improvements to prevent similar vulnerabilities from emerging in the device's architecture.