CVE-2026-20168
mediumpriority · track · 0EPSS 0.003 · 20 %ileEURUUSEPSS · scored 2026-10-28
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixed4.1.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.1.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.1.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.1.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.10.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.11.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.12.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.12.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.2.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.3.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.3.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.3.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.4.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.4.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.4.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.4.3cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.4.4cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.5.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.5.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.6.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.6.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.6.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.7.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.7.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.7.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.8.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.8.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.9.0cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.9.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed4.9.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (63)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-iot-fnd-dos-n8N26Q4uCisco IoT Field Network Director Vulnerabilities2026-05-06csaf · cisco_csafUS
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 ["#details"] section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2026-20168cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4uPatchcnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4uenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4uVendor Advisorynvd
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