{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-20167",
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "state": "PUBLISHED",
        "assignerShortName": "cisco",
        "dateReserved": "2025-10-08T11:59:15.390Z",
        "datePublished": "2026-05-06T16:15:57.113Z",
        "dateUpdated": "2026-05-06T17:26:01.173Z"
    },
    "containers": {
        "cna": {
            "title": "Cisco IoT Field Network Director Remote Device Denial of Service Vulnerability",
            "metrics": [
                {
                    "format": "cvssV3_1",
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                        "baseScore": 7.7,
                        "baseSeverity": "HIGH",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH"
                    }
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability in the web-based management interface of Cisco IoT Field Network Director could allow an authenticated, remote attacker with low privileges to cause a DoS condition on a remotely managed router.\r\n\r\nThis vulnerability is due to improper error handling. An attacker could exploit this vulnerability by submitting crafted input to the web-based management interface. A successful exploit could allow the attacker to request unauthorized files from a remote router, causing the router to reload and resulting in a DoS condition."
                }
            ],
            "references": [
                {
                    "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u",
                    "name": "cisco-sa-iot-fnd-dos-n8N26Q4u"
                }
            ],
            "exploits": [
                {
                    "lang": "en",
                    "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
                }
            ],
            "source": {
                "advisory": "cisco-sa-iot-fnd-dos-n8N26Q4u",
                "discovery": "EXTERNAL",
                "defects": [
                    "CSCwm81015"
                ]
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Improper Access Control",
                            "type": "cwe",
                            "cweId": "CWE-284"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Cisco",
                    "product": "Cisco IoT Field Network Director (IoT-FND)",
                    "versions": [
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                            "version": "4.5.1",
                            "status": "affected"
                        },
                        {
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                            "status": "affected"
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                            "status": "affected"
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                            "status": "affected"
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                            "version": "4.6.1",
                            "status": "affected"
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                            "version": "4.1.1",
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                        },
                        {
                            "version": "4.4.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.2.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.4.2",
                            "status": "affected"
                        },
                        {
                            "version": "4.3.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.6.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.4.4",
                            "status": "affected"
                        },
                        {
                            "version": "4.3.2",
                            "status": "affected"
                        },
                        {
                            "version": "4.1.2",
                            "status": "affected"
                        },
                        {
                            "version": "4.4.1",
                            "status": "affected"
                        },
                        {
                            "version": "4.5.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.3.1",
                            "status": "affected"
                        },
                        {
                            "version": "4.7.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.6.2",
                            "status": "affected"
                        },
                        {
                            "version": "4.7.1",
                            "status": "affected"
                        },
                        {
                            "version": "4.7.2",
                            "status": "affected"
                        },
                        {
                            "version": "4.8.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.8.1",
                            "status": "affected"
                        },
                        {
                            "version": "4.9.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.9.1",
                            "status": "affected"
                        },
                        {
                            "version": "4.10.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.9.2",
                            "status": "affected"
                        },
                        {
                            "version": "4.11.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.12.0",
                            "status": "affected"
                        },
                        {
                            "version": "4.12.1",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                }
            ],
            "providerMetadata": {
                "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
                "shortName": "cisco",
                "dateUpdated": "2026-05-06T16:15:57.113Z"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-06T17:25:48.384518Z",
                                "id": "CVE-2026-20167",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
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                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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}