CVE-2026-20167CWE-284

Cisco IoT Field Network Director Remote Device Denial of Service Vulnerability

High · published May 6, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
18.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00272 · 18.6th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-05-06T16:15Z
EPSS history
Timeline
  • 06 MAY 16:15Z
    Cisco IoT Field Network Director Remote Device Denial of Service Vulnerability
    cvelistv5