{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "security@zyxel.com.tw",
        "ID": "CVE-2021-4039",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Zyxel",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "NWA1100-NH firmware",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "2.12(AASI.0)C0"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "CONFIRM",
                "name": "https://www.zyxel.com/support/OS-command-injection-vulnerability-of-NWA1100-NH-access-point.shtml",
                "url": "https://www.zyxel.com/support/OS-command-injection-vulnerability-of-NWA1100-NH-access-point.shtml"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/166752/Zyxel-NWA-1100-NH-Command-Injection.html",
                "url": "http://packetstormsecurity.com/files/166752/Zyxel-NWA-1100-NH-Command-Injection.html"
            }
        ]
    },
    "impact": {
        "cvss": {
            "baseScore": "9.8",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A command injection vulnerability in the web interface of the Zyxel NWA-1100-NH firmware could allow an attacker to execute arbitrary OS commands on the device."
            }
        ]
    }
}