Cisco IoT Field Network Director Vulnerabilities
Multiple vulnerabilities in the web-based management interface of Cisco IoT Field Network Director Software could allow an authenticated, remote attacker to access files, execute commands, and cause denial of service (DoS) conditions on managed routers. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u Security Impact Rating: High CVE: CVE-2026-20167,CVE-2026-20168,CVE-2026-20169
CSIRTS triage
- What
- Multiple vulnerabilities could allow an authenticated attacker to access files, execute commands, and cause denial of service conditions.
- Who is affected
- Authenticated users of Cisco IoT Field Network Director are affected.
- Urgency
- Remediation is urgent due to the potential for significant operational impact.
- Action
- Update to the latest version of Cisco IoT Field Network Director.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-201670.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.
- Low exploitation riskCVE-2026-201680.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all scored CVEs.
- Low exploitation riskCVE-2026-201690.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-20167 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-20168 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-20169 | coverage & exploitation status | NVD · CVE.org |
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