CVE-2024-0537
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 vulnerability, which was classified as critical, was found in Tenda W9 1.0.0.7(4456). This affects the function setWrlBasicInfo of the component httpd. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-250707. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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 confidenceStack-based buffer overflow in Tenda W9 router httpd service's setWrlBasicInfo function. The ssidIndex parameter is not properly bounds-checked before being used in a memory operation, allowing remote attackers to overwrite stack memory and potentially execute arbitrary code. The attack is remotely exploitable without authentication.
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= 1.0.0.7\(4456\)CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 device modelAccess the router web interface or check the device label/marketing packaging to confirm it is a Tenda W9 routerAffected if Device is not a Tenda W9 router, then not affected
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Check firmware versionLog into the router web interface and navigate to System Settings > Firmware Upgrade, or use the command 'cat /proc/version' or 'ver' via telnet/SSH if available, to determine the installed firmware versionAffected if Firmware version is NOT exactly 1.0.0.7(4456), then not affected - the vulnerability exists only in this specific version
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Verify httpd service is runningCheck if the router web interface is accessible by attempting to reach the device IP on port 80 or 443 via a browser or curl commandAffected if httpd service is not running or web interface is not accessible, then the attack surface is not present
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Confirm remote management exposureCheck router firewall settings or port forwarding rules to determine if the web interface (port 80/443) is exposed to untrusted networks or the internetAffected if Web interface is exposed to untrusted networks, then the device is remotely exploitable without authentication per the CVE description
The device is affected only if it is a Tenda W9 router running firmware version exactly 1.0.0.7(4456) with the httpd web service accessible, particularly from untrusted networks.
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 dataAs the vendor did not respond and the device is likely end-of-life, immediately restrict network access to the device's web interface (port 80/443) from untrusted networks. Consider replacing the device with a supported model. If continued use is required, disable remote management features and monitor for compromise.
- Consultation4.0 h
- Implementation40.0 h
- Testing12.0 h
- Review / QA8.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-0537 — 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-2024-0537 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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- Version or environment caveats, and links to real fixes
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