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7.7
CVE-2026-20167PATCHED
Cisco · Cisco IoT Field Network Director (IoT-FND)

Cisco IoT Field Network Director Remote Device Denial of Service Vulnerability

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

VendorProductVersions
CiscoCisco IoT Field Network Director (IoT-FND)4.5.1, 4.4.3, 4.1.0, 4.1.3, 4.6.1, 4.1.1, 4.4.0, 4.2.0, 4.4.2, 4.3.0, 4.6.0, 4.4.4, 4.3.2, 4.1.2, 4.4.1, 4.5.0, 4.3.1, 4.7.0, 4.6.2, 4.7.1, 4.7.2, 4.8.0, 4.8.1, 4.9.0, 4.9.1, 4.10.0, 4.9.2, 4.11.0, 4.12.0, 4.12.1

References

  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u

Related News (1 articles)

Tier C
VulDB6h ago
CVE-2026-20167 | Cisco IoT Field Network Director up to 4.12.1 Web-based Management Interface denial of service (cisco-sa-iot-fnd-dos-n8N26Q4u)
→ No new info (linked only)
CVSS 3.17.7 HIGH
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CISA KEV❌ No
Actively exploited❌ No
Patch available
4.12.1
CWECWE-284
PublishedMay 6, 2026
Last enriched6h agov2
Trending Score27
Source articles1
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Verification

State: verified
Confidence: 0%

Vulnerability Timeline

CVE Published
May 6, 2026
Discovered by ZDM
May 6, 2026
Updated: patchAvailable
May 6, 2026
Patch Available
May 6, 2026

Version History

v2
Last enriched 6h ago
v2Tier C6h ago

Updated severity to CRITICAL, noted no exploit exists, and added patch available for version 4.12.1.

patchAvailable
via VulDB
v16h ago

Initial creation