dbcve.org
Dar 7000 FirmwareOperating system · Dlink

CVE-2024-4963

CRITICAL · 9.8 CVSS v3.1 Published 2024-05-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DAR-7000-40 V31R02B1413C. This affects an unknown part of the file /url/url.php. The manipulation of the argument file_upload leads to unrestricted upload. 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-264531. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

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 confidence

Unrestricted file upload vulnerability in D-Link DAR-7000-40 network appliance allows remote unauthenticated attackers to upload arbitrary files via the file_upload parameter in /url/url.php. With CVSS 9.8 and publicly available exploits, this enables remote code execution through web shell upload.

MitigationThis is a critical unauthenticated RCE vector; since the product is end-of-life and unpatched, the device must be retired and replaced. Implement network segmentation and firewall rules to block external access to the /url/url.php endpoint as an interim control.

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
Dar 7000 FirmwareOperating system
Affected:= v31r02b1413c

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model
    Access the device administrative interface or check the device label/management console to confirm the model is D-Link DAR-7000-40
    Affected if Device model is D-Link DAR-7000-40
  2. Check firmware version
    Access the device web interface System Status page or use CLI 'show version' command to determine the installed firmware version
    Affected if Firmware version is v31r02b1413c
  3. Confirm vulnerable endpoint exposure
    Attempt to reach the URL /url/url.php via HTTP or HTTPS from an external or internal network perspective
    Affected if The /url/url.php endpoint is accessible on the device
  4. Test file_upload parameter
    Send a crafted POST request to /url/url.php with the file_upload parameter containing a test file. Observe if the file is accepted without authentication
    Affected if The file_upload parameter accepts files without requiring authentication

A D-Link DAR-7000-40 device running firmware v31r02b1413c with an accessible /url/url.php endpoint that accepts unauthenticated file uploads is affected by CVE-2024-4963

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

This is a critical unauthenticated RCE vector; since the product is end-of-life and unpatched, the device must be retired and replaced. Implement network segmentation and firewall rules to block external access to the /url/url.php endpoint as an interim control.

Recommended fix High confidence
  1. This vulnerability affects D-Link DAR-7000-40 firmware V31R02B1413c which is end-of-life and no longer supported by the vendor.
  2. The vendor (D-Link) has explicitly stated this product should be retired and replaced, not patched.
  3. Replace the affected D-Link DAR-7000-40 device with a currently supported product from D-Link or an alternative vendor.
  4. If immediate replacement is not possible, isolate this device on a restricted network segment with firewall rules that block external access to the /url/url.php endpoint.
  5. Disable the file upload functionality at the network level if possible.
  6. Monitor for any unauthorized file uploads or suspicious activity on the affected system until replacement can be completed.
  7. Document the EOL status and replacement requirement for compliance and audit purposes.
Caveat No upgrade path available - product is end-of-life and vendor recommends retirement/replacement rather than patching

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Dar 7000 Firmware Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,980
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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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-4963 in production — separate from our analysis above.

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What belongs here
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  • Version or environment caveats, and links to real fixes
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