CVE-2026-20167 (GCVE-0-2026-20167)
Vulnerability from cvelistv5
Published
2026-05-06 16:15
Modified
2026-05-06 17:26
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-284 - Improper Access Control
Summary
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. This 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
Impacted products
Vendor Product Version
Cisco Cisco IoT Field Network Director (IoT-FND) Version: 4.5.1
Version: 4.4.3
Version: 4.1.0
Version: 4.1.3
Version: 4.6.1
Version: 4.1.1
Version: 4.4.0
Version: 4.2.0
Version: 4.4.2
Version: 4.3.0
Version: 4.6.0
Version: 4.4.4
Version: 4.3.2
Version: 4.1.2
Version: 4.4.1
Version: 4.5.0
Version: 4.3.1
Version: 4.7.0
Version: 4.6.2
Version: 4.7.1
Version: 4.7.2
Version: 4.8.0
Version: 4.8.1
Version: 4.9.0
Version: 4.9.1
Version: 4.10.0
Version: 4.9.2
Version: 4.11.0
Version: 4.12.0
Version: 4.12.1
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              "content": {
                "id": "CVE-2026-20167",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T17:25:48.384518Z",
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      "exploits": [
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          "cvssV3_1": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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        "dateUpdated": "2026-05-06T16:15:57.113Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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          "name": "cisco-sa-iot-fnd-dos-n8N26Q4u",
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    "dateReserved": "2025-10-08T11:59:15.390Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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