CVE-2021-40519
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 · uneditedAirangel HSMX Gateway devices through 5.2.04 have Hard-coded Database Credentials.
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 confidenceAirangel HSMX Gateway devices through version 5.2.04 contain hard-coded database credentials embedded in the firmware or configuration. These static credentials allow unauthenticated attackers to gain direct access to the device's database, potentially exposing sensitive data or enabling further compromise of the gateway.
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<= 5.2.04<= 5.2.04<= 5.2.04<= 5.2.04<= 5.2.04CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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 the device modelLog into the device admin interface or check the device label to confirm it is an Airangel HSMX Gateway (model 25, 100, 1000, 5000, or 20000)Affected if The device is an Airangel HSMX Gateway model
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Check the firmware versionAccess the device administrative interface or use the command line interface to retrieve the installed firmware version. Typical paths include the system information page or running 'version' or 'show system' commands.Affected if The firmware version is 5.2.04 or lower
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Locate the database configurationAccess the device filesystem via SSH, FTP, or by extracting the firmware image. Search for database configuration files such as config.xml, database.conf, or similar files in /etc/, /opt/, or application data directories.Affected if Database configuration files exist on the device
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Inspect for hard-coded credentialsOpen the database configuration files and examine any username and password fields. Look for static credentials that appear hard-coded rather than dynamically generated or environment-based.Affected if Static credentials are found in the database configuration files
If the device is an Airangel HSMX Gateway with firmware version 5.2.04 or lower and contains hard-coded database credentials in configuration files, the environment is affected by this CVE.
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 dataReplace hard-coded credentials with dynamically generated or properly managed credentials, and apply vendor-supplied firmware updates when available. If immediate patching is unavailable, network segmentation and access controls should be implemented to limit exposure.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-40519 — 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-2021-40519 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
- No spam, self-promotion, credentials, or personal data