What’s Vulnerable › Vulnerabilities

CVE-2020-26075: Cisco IoT Field Network REST API Insufficient Input Validation Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-18 · updated 2026-06-17
• Weakness: CWE-89

Description

A vulnerability in the REST API of Cisco IoT Field Network Director (FND) could allow an authenticated, remote attacker to gain access to the back-end database of an affected device. The vulnerability is due to insufficient input validation of REST API requests that are made to an affected device. An attacker could exploit this vulnerability by crafting malicious API requests to the affected device. A successful exploit could allow the attacker to gain access to the back-end database of the affected device.

Affected products

• Cisco IoT Field Network Director (IoT-FND): before 4.6.1 — fixed in 4.6.1

How to fix

Upgrade to a fixed version: Cisco IoT Field Network Director (IoT-FND) 4.6.1. Check the vendor advisory for mitigations.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-FND-SQL-zEkBnL2h
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-FND-SQL-zEkBnL2h

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