cvelist/2021/34xxx/CVE-2021-34778.json

{
    "CVE_data_meta": {
        "ASSIGNER": "psirt@cisco.com",
        "DATE_PUBLIC": "2021-10-06T16:00:00",
        "ID": "CVE-2021-34778",
        "STATE": "PUBLIC",
        "TITLE": "Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Cisco Small Business 200 Series Smart Switches ",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Cisco"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business 220 Series Smart Switches. An unauthenticated, adjacent attacker could perform the following: Execute code on the affected device or cause it to reload unexpectedly Cause LLDP database corruption on the affected device For more information about these vulnerabilities, see the Details section of this advisory. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). Cisco has released firmware updates that address these vulnerabilities."
            }
        ]
    },
    "exploit": [
        {
            "lang": "eng",
            "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory. "
        }
    ],
    "impact": {
        "cvss": {
            "baseScore": "8.8",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N ",
            "version": "3.0"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-120"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "20211006 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities",
                "refsource": "CISCO",
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb220-lldp-multivuls-mVRUtQ8T"
            }
        ]
    },
    "source": {
        "advisory": "cisco-sa-sb220-lldp-multivuls-mVRUtQ8T",
        "defect": [
            [
                "CSCvz29108",
                "CSCvz29116",
                "CSCvz29120",
                "CSCvz29121",
                "CSCvz29126",
                "CSCvz29134"
            ]
        ],
        "discovery": "INTERNAL"
    }
}