CVE-2022-46371
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 · uneditedAlotcer - AR7088H-A firmware version 16.10.3 Information disclosure. Unspecified error message contains the default administrator user name.
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 confidenceInformation disclosure vulnerability in Alotcer AR7088H-A router firmware version 16.10.3 where an unspecified error message exposes the default administrator username. This leak could assist attackers in credential stuffing or brute force attacks by providing a valid username target.
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<= 16.10.3CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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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Check the router firmware versionAccess the router administrative web interface and navigate to System Status or Firmware Information page. Alternatively, check the kernel or system logs via telnet/SSH if available, or review the firmware file header if you have access to the firmware binary.Affected if The installed firmware version is 16.10.3 or earlier (any version <= 16.10.3)
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Verify the default administrator usernameConsult the router documentation or physical device label to identify the default administrator username. Common defaults for this device type may include 'admin' or 'administrator'.Affected if The device is using a factory-default administrator username such as 'admin' without modification
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Test error message responsesAttempt to log in to the router web interface with a valid-looking username but incorrect password. Observe the error message returned by the login page.Affected if The error message displays or hints at the default administrator username (for example, 'User admin does not exist' versus 'Invalid password' would confirm the username is being validated and disclosed)
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Check for publicly accessible login interfaceDetermine if the router web management interface is reachable from the WAN or untrusted network by attempting to access the router IP address from an external location, or by reviewing firewall/NAT port forwarding rules.Affected if The router administrative interface is exposed to untrusted networks, increasing the risk that the disclosed username can be exploited
The user is affected if the device runs firmware version 16.10.3 or earlier AND the default administrator username is exposed in login error messages AND the device is network-accessible to potential attackers.
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 the default administrator credentials immediately to non-default values. If available, apply vendor firmware updates that address improper error message handling.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-46371 — 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-2022-46371 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