CVE-2019-9484
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 Glen Dimplex Deutschland GmbH implementation of the Carel pCOWeb configuration tool allows remote attackers to obtain access via an HTTP session on port 10000, as demonstrated by reading the modem password (which is 1234), or reconfiguring "party mode" or "vacation mode."
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 Carel pCOWeb configuration tool (implemented by Glen Dimplex Deutschland GmbH) exposes an unauthenticated HTTP interface on port 10000, allowing remote attackers to access sensitive configuration data including a hardcoded modem password (1234) and modify system settings such as party mode or vacation mode. This represents a critical authentication bypass or default credential vulnerability.
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 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
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/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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Identify if Carel pCOWeb service is runningScan your network for hosts responding on TCP port 10000, or check running services on known HVAC/building management systems for processes listening on port 10000Affected if A service is listening on TCP port 10000 on any system
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Verify HTTP interface accessibilityAttempt an HTTP request to the suspected pCOWeb device on port 10000 (e.g., curl http://target:10000/) without providing any credentialsAffected if The HTTP interface returns a response without requiring authentication
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Check for sensitive data exposureInspect the HTTP response from port 10000 for sensitive configuration data, including modem password fields or system settings like party mode or vacation mode parametersAffected if The response contains configuration data, passwords, or system mode settings without having logged in
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Test default credential susceptibilityIf authentication is required, attempt to authenticate using the hardcoded password '1234' or check if the interface accepts any login without credential validationAffected if The default password 1234 grants access or no authentication is required for configuration changes
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Confirm product identityExamine HTTP response headers, HTML title, or favicon to confirm the service is Carel pCOWeb (look for 'pCOWeb' or Carel-related strings in the interface)Affected if The service on port 10000 is identified as Carel pCOWeb Card Firmware
Your environment is affected if a Carel pCOWeb service is accessible on port 10000 without authentication or with the default password 1234, allowing unauthorized access to sensitive configuration data.
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 dataChange default credentials immediately, restrict network access to port 10000 via firewall rules or network segmentation, and disable remote HTTP management if not required.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2019-9484 — 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-2019-9484 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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