{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-28166",
        "ASSIGNER": "security@eclipse.org",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "The Eclipse Foundation",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Eclipse Mosquitto",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": ">=",
                                            "version_value": "2.0"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_value": "2.0.9"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur."
            }
        ]
    },
    "impact": {
        "cvss": {
            "baseScore": 6.0,
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-476: NULL Pointer Dereference"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=572608",
                "refsource": "CONFIRM",
                "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=572608"
            }
        ]
    }
}