dbcve.org
Di 8003 FirmwareOperating system · Dlink

CVE-2025-50657

HIGH · 7.5 CVSS v3.1 Published 2026-04-08
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
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
A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the pid parameter in the /trace.asp endpoint.

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

A buffer overflow vulnerability in D-Link DI-8003 router firmware 16.07.26A1 allows attackers to overflow a buffer via the pid parameter in the /trace.asp endpoint. This could allow remote code execution or denial of service.

MitigationApply vendor-supplied firmware patch when available; until then, restrict network access to the trace.asp endpoint via firewall rules or disable remote administration.

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
Di 8003 FirmwareOperating system
Affected:= 16.07.26a1

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
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 checks

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

  1. Identify the router model
    Log into the router web interface or check the device label to confirm the model is D-Link DI-8003
    Affected if The device is not a D-Link DI-8003 model, then this specific CVE does not apply
  2. Check the installed firmware version
    Access the router web interface, typically at 192.168.0.1, and navigate to System > Firmware or Status page to view the firmware version. Alternatively, check the upgrade page or system info section.
    Affected if The installed firmware version is 16.07.26A1, then the device is affected by this CVE
  3. Verify trace.asp endpoint exists and is accessible
    Attempt to access http://<router-ip>/trace.asp via a browser or curl command. Check if the page loads or returns any response.
    Affected if The trace.asp endpoint is accessible (returns HTTP 200 or any response rather than 404), the vulnerability is potentially exploitable
  4. Confirm pid parameter handling in trace.asp
    Send a crafted request to trace.asp with an abnormally long pid parameter value (e.g., using curl: curl http://<router-ip>/trace.asp?pid=AAAA... repeated characters). Observe if the device crashes, hangs, or returns an error indicating buffer overflow.
    Affected if The device exhibits abnormal behavior (crash, hang, error message, or unexpected response) when processing an overly long pid parameter, the vulnerability is confirmed present

A user is affected if they have a D-Link DI-8003 router running firmware version 16.07.26A1 and the trace.asp endpoint is accessible with the pid parameter vulnerable to overflow.

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

Apply vendor-supplied firmware patch when available; until then, restrict network access to the trace.asp endpoint via firewall rules or disable remote administration.

Recommended fix Moderate confidence

D-Link DI-8003 firmware newer than 16.07.26a1 (check D-Link support for available versions)

  1. 1. Check D-Link's official support page (www.dlink.com or supportannouncement.us.dlink.com) for the DI-8003 firmware download section.
  2. 2. Look for firmware versions newer than 16.07.26a1 that address security vulnerabilities.
  3. 3. If a newer firmware is available, download it from the official D-Link source only.
  4. 4. Access the D-Link DI-8003 admin interface via a browser.
  5. 5. Navigate to the firmware upgrade or system settings section.
  6. 6. Upload and install the new firmware version following the on-screen instructions.
  7. 7. After upgrade, verify the /trace.asp endpoint is either patched or removed.
  8. 8. As an interim mitigation, restrict network access to the device's management interface (HTTP/HTTPS) to trusted IPs only using firewall rules or ACLs.
Caveat firmware upgrades on D-Link devices may reset configuration to defaults; back up current config before upgrading

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

Fix this in Di 8003 Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
36.0 hours of engineering $6,400
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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-2025-50657 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data