CVE-2022-29963
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 Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords. TELNET on port 18550 provides access to a root shell via hardcoded credentials. This affects S-series, P-series, and CIOC/EIOC nodes. NOTE: this is different from CVE-2014-2350.
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 confidenceEmerson DeltaV DCS controllers and IO cards (S-series, P-series, CIOC/EIOC nodes) expose a TELNET service on port 18500 that provides root shell access using hardcoded credentials. An attacker with network access to this port can gain full control of the 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<= 2022-04-29<= 2022-04-29<= 2022-04-29<= 2022-04-29<= 2022-04-29<= 2022-04-29<= 2022-04-29<= 2022-04-29CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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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Verify port 18500 is open and responsiveScan the target device using a network port scanner (such as nmap) or check listening ports on the device itself. Attempt a telnet connection to port 18500 to see if a service responds.Affected if Port 18500 is open and accepts connections, indicating the vulnerable TELNET service is exposed.
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Confirm device is an Emerson DeltaV controller or IO cardIdentify the device model by checking the hardware label, controller system information, or querying the device's management interface. Look for model identifiers such as Sq, Sx, Se4002, Se4003, Se4017, or Se4019.Affected if The device is one of the DeltaV S-series controllers or Se4000 series IO cards listed in the affected products.
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Determine the installed firmware versionAccess the DeltaV controller or IO card management interface (such as the DeltaV Explorer or controller diagnostics) and retrieve the firmware version information. Compare the build date to 2022-04-29.Affected if The firmware version date is on or before 2022-04-29, or the version falls within the affected ranges listed for the specific model.
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Verify TELNET service is enabledCheck the controller or IO card configuration to confirm whether the TELNET service on port 18500 is actively enabled. This may be viewable in the device's network services configuration or through a management console.Affected if The TELNET service is explicitly enabled and accessible on port 18500.
A device is affected if it is an Emerson DeltaV S-series controller or Se4000 series IO card with firmware dated 2022-04-29 or earlier, and port 18500 is open with the TELNET service enabled.
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 dataDisable TELNET service on port 18500 if not operationally required; otherwise implement network segmentation to restrict access to authorized personnel only and coordinate with Emerson for firmware updates that address the hardcoded credentials.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-29963 — 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-2022-29963 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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