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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco IoT Field Network Director (IoT-FND) unknown
Version Status Constraints
4.5.1 affected —
4.4.3 affected —
4.1.0 affected —
4.1.3 affected —
4.6.1 affected —
4.1.1 affected —
4.4.0 affected —
4.2.0 affected —
4.4.2 affected —
4.3.0 affected —
4.6.0 affected —
4.4.4 affected —
4.3.2 affected —
4.1.2 affected —
4.4.1 affected —
4.5.0 affected —
4.3.1 affected —
4.7.0 affected —
4.6.2 affected —
4.7.1 affected —
4.7.2 affected —
4.8.0 affected —
4.8.1 affected —
4.9.0 affected —
4.9.1 affected —
4.10.0 affected —
4.9.2 affected —
4.11.0 affected —
4.12.0 affected —
4.12.1 affected —

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u cve-icon cve-icon
History

Wed, 06 May 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 06 May 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Cisco IoT Field Network Director Remote Device Denial of Service Vulnerability
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-05-06T17:26:01.173Z

Reserved: 2025-10-08T11:59:15.390Z

Link: CVE-2026-20167

cve-icon Vulnrichment

Updated: 2026-05-06T17:25:54.850Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-06T17:16:20.433

Modified: 2026-05-06T18:59:53.230

Link: CVE-2026-20167

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-06T17:30:08Z

Weaknesses