VDB
CVE-2026-20167
CVE-2026-20167
PUBLISHED
CVSS 7.699999809265137 HIGH
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.
EPSS 0.14% · 34.1th percentile
Risk Scores
CVSS 3.1
7.699999809265137
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS Score
0.14%
34.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco IoT Field Network Director (IoT-FND) | 4.1.0, 4.1.3, 4.6.1 |
Exploit Intelligence
- CIRCL seen: CVE-2026-20167 (circl-sighting)
- cisco-sa-iot-fnd-dos-n8N26Q4u (circl)
Timeline
- May 6, 2026 CVE Published
- May 6, 2026 PoC Published
- May 6, 2026 Security Advisory
- May 6, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score
- May 25, 2026 EPSS Score