CVE-2023-41028
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 · uneditedA stack-based buffer overflow exists in Juplink RX4-1500, a WiFi router, in versions 1.0.2 through 1.0.5. An authenticated attacker can exploit this vulnerability to achieve code execution as root.
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 confidenceA stack-based buffer overflow vulnerability exists in Juplink RX4-1500 WiFi routers running firmware versions 1.0.2 through 1.0.5. An authenticated attacker can exploit this flaw to overflow a stack-allocated buffer and achieve arbitrary code execution with root privileges.
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>= 1.0.2, <= 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 router modelCheck the device label or web interface for the exact model name (Juplink RX4-1500)Affected if The device is not a Juplink RX4-1500 router, then this CVE does not apply
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Determine the firmware versionAccess the router admin web interface (typically at 192.168.1.1) and navigate to System or Status settings to view the firmware version; alternatively, check the firmware file if you have local accessAffected if The installed firmware version falls within the range 1.0.2 to 1.0.5 inclusive, meaning the device is vulnerable
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Verify administrative access methodConfirm whether the router administrative web interface is accessible from the local network or remotely over the internet (check router port forwarding rules, firewall settings, or WAN access)Affected if The administrative interface is exposed (especially remotely), which is required for an authenticated attacker to exploit this flaw
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Check for unauthorized admin accountsLog into the router admin interface and review the list of user accounts under the Administration or User Management sectionAffected if Unexpected or unauthorized administrator accounts exist, which may indicate successful exploitation
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Look for signs of compromiseReview router system logs (usually under System Tools > Log) for unusual entries such as unexpected process restarts, arbitrary command execution, or unfamiliar scheduled tasksAffected if Logs show suspicious activity such as unknown commands, unexpected reboots, or configuration changes not made by the administrator
You are affected if you have a Juplink RX4-1500 router running firmware version 1.0.2, 1.0.3, 1.0.4, or 1.0.5 and the administrative interface is accessible to an attacker.
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 the vendor-supplied firmware patch when available; until then, restrict administrative access to trusted IP addresses only and monitor for unauthorized access attempts.
- Consultation3.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-41028 — 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-2023-41028 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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