Iot Field Network DirectorApplication · Cisco
CVE-2020-26075
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability in the REST API of Cisco IoT Field Network Director (FND) could allow an authenticated, remote attacker to gain access to the back-end database of an affected device. The vulnerability is due to insufficient input validation of REST API requests that are made to an affected device. An attacker could exploit this vulnerability by crafting malicious API requests to the affected device. A successful exploit could allow the attacker to gain access to the back-end database of the affected device.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe vulnerability exists in the REST API of Cisco IoT Field Network Director where insufficient input validation of API requests allows an authenticated attacker to craft malicious requests that bypass normal access controls and gain direct access to the back-end database of the affected device.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Iot Field Network DirectorApplication
< 4.6.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify if Cisco IoT Field Network Director is installedCheck for the presence of Cisco IoT FND processes or installation directories on the system. Look for processes named 'fndservice', 'iotfnd', or similar, and check common installation paths such as /opt/cisco/iot-fnd or C:\Program Files\Cisco\IoT FNDAffected if The software is installed and running on the system
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Determine the installed version of Cisco IoT FNDCheck the installed version by inspecting the application itself. Common methods include: checking the About page in the web interface, reviewing version files in the installation directory, or querying the system package manager if available. Compare your version to the affected range of versions prior to 4.6.1Affected if The installed version is any version prior to 4.6.1 (for example, 4.6.0, 4.5.x, 4.4.x, etc.)
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Confirm the REST API is enabledCheck if the REST API functionality is accessible on the device. This can be done by attempting to reach common API endpoints such as /api/fnd/v1/ or /rest/api/ on the IoT FND host, or by reviewing the configuration for API-enabled servicesAffected if The REST API is exposed and accessible on the network
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Review API access logs for anomalous requestsExamine the Cisco IoT FND logs for signs of unusual API activity, particularly requests that may indicate database enumeration or access attempts. Look for API calls with unusual query patterns, unexpected database table references, or elevated frequency of API requests from authenticated sessionsAffected if Logs show API requests with suspicious patterns that suggest exploitation of access control bypass
You are affected if Cisco IoT FND is installed with a version prior to 4.6.1 and the REST API is enabled and accessible on your network.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data4.6.1
Apply the vendor patch or updated version of Cisco IoT FND. Until patched, restrict API access to trusted IP addresses only and monitor for anomalous API activity patterns.
Fix this in Iot Field Network Director
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-26075 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-26075 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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