What’s Vulnerable › Vulnerabilities
CVE-2026-20167: Cisco IoT Field Network Director Remote Device Denial of Service Vulnerability
- Severity: high (CVSS 7.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-06 · updated 2026-10-26
- Weakness: CWE-284
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.
Affected products
- Cisco IoT Field Network Director (IoT-FND): before 5.0.0-117 — fixed in 5.0.0-117
How to fix
Upgrade to a fixed version: Cisco IoT Field Network Director (IoT-FND) 5.0.0-117. Check the vendor advisory for mitigations.
References
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