CVE-2024-51016
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 · uneditedNetgear XR300 v1.0.3.78 was discovered to contain a stack overflow via the addName%d parameter in usb_approve.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
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 confidenceA stack-based buffer overflow vulnerability exists in Netgear XR300 firmware v1.0.3.78 within the usb_approve.cgi web interface. The vulnerability is triggered through the addName%d parameter in a crafted POST request, causing stack corruption that leads to device crash and denial of service.
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= 1.0.3.78CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 to confirm it is a Netgear XR300 router. Alternatively, check the DHCP client list or network inventory for the device hostname or MAC vendor prefix.Affected if The device is not a Netgear XR300 router.
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Check the installed firmware versionLog into the router web interface and navigate to Administration > Firmware Update or check under the router status page. Note the exact firmware version displayed.Affected if The installed firmware version is 1.0.3.78.
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Verify the web interface is accessibleAttempt to access the router login page over HTTP/HTTPS from the local network using the router IP address (typically 192.168.1.1). Confirm the usb_approve.cgi endpoint responds.Affected if The router web interface is exposed and reachable.
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Confirm the vulnerable CGI endpoint existsSend a POST request to http://<router-ip>/usb_approve.cgi (or HTTPS if configured) with any payload to the addName%d parameter. A response (even an error) indicates the endpoint is active.Affected if The usb_approve.cgi endpoint responds to requests.
A user is affected if they have a Netgear XR300 router running firmware version 1.0.3.78 with the web interface accessible on their network.
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 the device's web interface to trusted networks only, ideally through VPN or network segmentation, and evaluate replacement with a currently supported router model as Netgear firmware updates may not be available for this legacy device.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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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-2024-51016 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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