CVE-2026-20167

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:iot_field_network_director:*:*:*:*:*:*:*:*

History

30 Jun 2026, 20:39

Type	Values Removed	Values Added
First Time		Cisco iot Field Network Director Cisco
CPE		cpe:2.3:a:cisco:iot_field_network_director::::::::
References	~~() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u -~~	() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u - Vendor Advisory

06 May 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-06 17:16

Updated : 2026-06-30 20:39

NVD link : CVE-2026-20167

Mitre link : CVE-2026-20167

CVE.ORG link : CVE-2026-20167

JSON object : View

Products Affected

cisco

iot_field_network_director

CWE

CWE-284

Improper Access Control

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