CVE-2023-41027
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 · uneditedCredential disclosure in the '/webs/userpasswd.htm' endpoint in Juplink RX4-1500 Wifi router firmware versions V1.0.4 and V1.0.5 allows an authenticated attacker to leak the password for the administrative account via requests to the vulnerable endpoint.
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 Juplink RX4-1500 router firmware versions 1.0.4 and 1.0.5 contain an information disclosure vulnerability in the '/webs/userpasswd.htm' web endpoint. When accessed by any authenticated user, this endpoint returns the administrative account password in plaintext, allowing privilege escalation and full device compromise.
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= 1.0.4= 1.0.5CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 modelCheck the router label or access the web interface and look for the model number display (typically on the status or dashboard page)Affected if The device is not a Juplink RX4-1500
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Determine the firmware versionAccess the router web interface, navigate to the System or Administration settings page, and locate the firmware version field. Alternatively, check the upgrade page or system status page.Affected if The firmware version is 1.0.4 or 1.0.5
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Confirm the web management interface is enabledAttempt to access the router web interface via its LAN or WAN IP address (typically http://192.168.1.1 or similar). Check the administration or remote management settings to see if the web interface is enabled.Affected if The web management interface is accessible (either locally or remotely)
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Verify the vulnerable endpoint existsWith any valid user credentials (even a low-privilege user account), log into the web interface and navigate to or request the '/webs/userpasswd.htm' endpoint directly via browser or HTTP tool.Affected if The endpoint responds and is accessible to authenticated users
You are affected if you have a Juplink RX4-1500 router running firmware version 1.0.4 or 1.0.5 AND the web management interface is accessible, as any authenticated user can retrieve the admin password in plaintext.
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 dataApply vendor firmware update when available. In the interim, restrict access to the administrative web interface to trusted IP addresses only or disable remote web management.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-41027 — 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-2023-41027 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