CVE-2014-0769
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 · uneditedThe Festo CECX-X-C1 Modular Master Controller with CoDeSys and CECX-X-M1 Modular Controller with CoDeSys and SoftMotion do not require authentication for connections to certain TCP ports, which allows remote attackers to (1) modify the configuration via a request to the debug service on port 4000 or (2) delete log entries via a request to the log service on port 4001.
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 · high confidenceThe Festo CECX-X-C1 Modular Master Controller and CECX-X-M1 Modular Controller running CoDeSys and SoftMotion expose unauthenticated debug and log services on TCP ports 4000 and 4001 respectively. Port 4000 allows remote modification of device configuration without any authentication, while port 4001 permits deletion of log entries. This allows remote unauthenticated attackers to alter controller behavior or conceal their activities.
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 dataall versionsall versionsall versionsall versionsCVSS 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
- M
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:M/Au:N/C:C/I:C/A:C
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 affected Festo or CoDeSys softwareInventory installed industrial control software on the system. Look for: Softmotion3d SoftMotion, Festo CECX-X-C1 or CECX-X-M1 controllers, or 3S Software CoDeSys Runtime System. Check Program Files, installed applications, or controller firmware information.Affected if Any of these products are installed and running on the network.
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Scan for open TCP port 4000Use a network port scanner (such as nmap, netstat, or PowerShell Test-NetConnection) to check if TCP port 4000 is listening and exposed on the target device or network segment.Affected if Port 4000 is open and accessible from an untrusted network.
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Scan for open TCP port 4001Use a network port scanner to check if TCP port 4001 is listening and exposed on the target device or network segment.Affected if Port 4001 is open and accessible from an untrusted network.
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Verify unauthenticated access to debug serviceAttempt a TCP connection to port 4000 using a tool like netcat or telnet. If the connection succeeds without authentication, the debug service is exposed.Affected if Connection to port 4000 succeeds and allows configuration changes without credentials.
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Verify unauthenticated access to log serviceAttempt a TCP connection to port 4001. If the connection succeeds and permits log deletion commands without authentication, the log service is exposed.Affected if Connection to port 4001 succeeds and allows log manipulation without credentials.
The environment is affected if any Festo CECX controller or CoDeSys/SoftMotion runtime is running with TCP ports 4000 or 4001 exposed to an untrusted network, allowing unauthenticated configuration changes or log deletion.
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 dataIsolate affected controllers in a dedicated network segment with strict firewall rules blocking external access to ports 4000 and 4001. If vendor patches are available, update firmware. Implement compensating controls such as intrusion detection for these ports.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-0769 — 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-2014-0769 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
- No weaponised exploit code, or anything meant to cause harm
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