Di 8003 FirmwareOperating system · Dlink

CVE-2025-50648

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 inadequate input validation in the /tggl.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 · moderate confidence

Buffer overflow vulnerability in D-Link DI-8003 router firmware version 16.07.26A1 in the /tggl.asp web endpoint due to inadequate input validation. This could allow remote attackers to cause denial of service or potentially execute arbitrary code by sending specially crafted input to the affected endpoint.

MitigationApply vendor-supplied firmware patch when available; if no patch exists, restrict administrative interface access to trusted networks only or retire/replace the affected device.

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. Confirm router model is D-Link DI-8003
    Log into the router web interface and check the device information page, or check the physical device label for the model number DI-8003
    Affected if The device is not a D-Link DI-8003 router (different models are not affected by this specific CVE)
  2. Check firmware version equals 16.07.26A1
    In the router web interface, navigate to System Status or Device Info page and locate the firmware version field; alternatively, access the router via CLI and run 'show version' or 'cat /proc/version' if available
    Affected if Firmware version is exactly 16.07.26A1 (this is the only version listed as affected)
  3. Verify web interface is accessible
    Attempt to reach the router's IP address via HTTP/HTTPS in a browser (e.g., http://192.168.0.1 or the router's default gateway IP); check if the login page loads
    Affected if The web management interface is enabled and reachable - the /tggl.asp endpoint must be accessible for the vulnerability to be exploitable
  4. Confirm /tggl.asp endpoint exists
    Navigate directly to http://<router-ip>/tggl.asp in a browser and observe whether the page loads or returns any response (even an error)
    Affected if The /tggl.asp page is accessible - this is the specific endpoint where the buffer overflow occurs due to insufficient input validation

You are affected if you have a D-Link DI-8003 router running firmware version 16.07.26A1 with the web interface enabled and the /tggl.asp endpoint accessible.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-supplied firmware patch when available; if no patch exists, restrict administrative interface access to trusted networks only or retire/replace the affected device.

Fix this in Di 8003 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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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-2025-50648 in production — separate from our analysis above.

No notes yet

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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
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  • Version or environment caveats, and links to real fixes
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