CVE-2023-41352
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 · uneditedChunghwa Telecom NOKIA G-040W-Q has a vulnerability of insufficient filtering for user input. A remote attacker with administrator privilege can exploit this vulnerability to perform a Command Injection attack to execute arbitrary commands, disrupt the system or terminate services.
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 confidenceCommand injection vulnerability in Chunghwa Telecom NOKIA G-040W-Q router firmware. An authenticated attacker with administrator privileges can inject arbitrary OS commands through insufficiently filtered user input fields in the web management interface, allowing full system 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= g040wqr201207CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/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 modelLog into the router web interface or check the device label/metadata to confirm the model is Nokia G-040W-Q (also written as G040w or G-040W-Q) from Chunghwa TelecomAffected if The device model is not Nokia G-040W-Q - the vulnerability only applies to this specific model
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Check the installed firmware versionAccess the router web management interface, navigate to the firmware/version information page (usually under System, Maintenance, or Status settings), and record the firmware build stringAffected if The firmware version exactly matches g040wqr201207 - this is the only version explicitly listed as affected
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Verify web management interface is accessibleAttempt to reach the router web interface via HTTP/HTTPS on the LAN or WAN IP addresses. Check firewall rules and port forwarding configurations that may expose port 80 or 443 externallyAffected if The web management interface is exposed and reachable from untrusted networks - the command injection is exploitable through this interface
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Confirm administrator access existsCheck for configured administrator accounts in the router settings. Verify whether default credentials are in use or if custom admin passwords have been setAffected if An administrator account is configured and accessible - the vulnerability requires authentication with administrator privileges to be exploited
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Inspect user input fields in the web interfaceLog in as administrator and examine input fields in web management pages (such as network settings, diagnostic tools, or configuration forms). Look for fields that may pass input to system commands without sanitizationAffected if Input fields accept special characters (such as ; | & $ `) that could be interpreted as OS command separators - this indicates the lack of filtering that enables the vulnerability
The user is affected if they have a Nokia G-040W-Q router running firmware version g040wqr201207 with an accessible web management interface and active administrator account.
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 dataRestrict administrative access to trusted IPs/networks, implement strict input validation and sanitization on all user-supplied parameters, and apply vendor firmware updates when available.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-41352 — 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-2023-41352 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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