CVE-2026-20168 Cisco IoT Field Network Director Path Traversal Vulnerability

Medium 6.5 Published 6 May 2026 Updated 6 May 2026

Authenticated low-privilege attackers can read unauthorized files via crafted input in the Cisco IoT Field Network Director web interface.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-20168?

CVE-2026-20168 is a medium-severity path traversal vulnerability in Cisco IoT Field Network Director (IoT-FND), published on 6 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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 retrieve files that they do not have permission to access. This vulnerability is due to insufficient file access checks. An attacker could exploit this vulnerability by submitting crafted input in the web-based management interface. A successful exploit could allow the attacker to read files that they are not authorized to access.

Weakness: CWE-388

Which versions are affected by CVE-2026-20168?

It affects 1 product.

Products include Cisco Iot Field Network Director.

How do I fix CVE-2026-20168?

No fix has been published for CVE-2026-20168 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-20168 being exploited?

There is no known exploitation of CVE-2026-20168 in the wild and no public exploit code.

Sources

Also known as GHSA-4q4m-pqh7-mj3f.