Can you explain this vulnerability to me?

CVE-2026-1802 is a command injection vulnerability found in the Ziroom ZHOME A0101 router firmware version 1.0.1.0. It affects the function macAddrClone in the file luci\controller\api\zrMacClone.lua. The vulnerability arises because the macType argument is not properly sanitized, allowing an attacker to inject arbitrary commands.

An attacker who is authenticated (logged in) can exploit this flaw by sending a specially crafted HTTP POST request to a specific endpoint on the router. This enables the attacker to execute unauthorized commands on the device remotely.

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How can this vulnerability impact me? :

Exploitation of this vulnerability allows an attacker to execute arbitrary commands on the affected router, which can compromise the device and the network it is connected to.

• Compromise of device confidentiality, integrity, and availability.
• Potential unauthorized access to network resources.
• Remote command execution leading to control over the router.
• No known patches or mitigations are available, increasing risk.

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How can this vulnerability be detected on my network or system? Can you suggest some commands?

[{'type': 'paragraph', 'content': 'This vulnerability can be detected by monitoring for suspicious HTTP POST requests targeting the vulnerable endpoint on the Ziroom ZHOME A0101 router firmware version 1.0.1.0.'}, {'type': 'paragraph', 'content': 'Specifically, look for POST requests to the path: /cgi-bin/luci/;stok=83595879e6b3eb41fd175b19522bd9df/api/ZRMacClone/mac_addr_clone with parameters related to macType.'}, {'type': 'paragraph', 'content': 'Since exploitation requires authentication, detection can also involve checking for unusual authenticated sessions or commands executed on the device.'}, {'type': 'list_item', 'content': 'Use network monitoring tools (e.g., tcpdump, Wireshark) to filter HTTP POST requests to the vulnerable endpoint.'}, {'type': 'list_item', 'content': "Example tcpdump command to capture suspicious traffic: tcpdump -i <interface> 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' -A | grep '/api/ZRMacClone/mac_addr_clone'"}, {'type': 'list_item', 'content': 'Check router logs for any unusual commands or activity related to macAddrClone or macType parameters.'}] [1]

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What immediate steps should I take to mitigate this vulnerability?

[{'type': 'paragraph', 'content': "Immediate mitigation steps include restricting access to the affected router's management interface to trusted networks only."}, {'type': 'paragraph', 'content': 'Disable remote management if enabled to prevent remote exploitation.'}, {'type': 'paragraph', 'content': 'Monitor and audit authenticated sessions to detect any unauthorized access attempts.'}, {'type': 'paragraph', 'content': 'Since no patches or vendor responses are available, consider replacing the affected device with a secure alternative.'}, {'type': 'paragraph', 'content': 'Implement network segmentation to isolate the vulnerable device from critical network resources.'}] [3]

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How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:

The CVE-2026-1802 vulnerability allows remote command injection on the Ziroom ZHOME A0101 router, potentially compromising the confidentiality, integrity, and availability of the affected system.

Such a compromise could lead to unauthorized access or control over the device and network, which may result in exposure or manipulation of sensitive data.

This kind of security flaw can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require protection of personal and sensitive information against unauthorized access and breaches.

However, the provided information does not explicitly state the direct impact on compliance frameworks or any specific regulatory consequences.

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