Dir 600l FirmwareOperating system · Dlink

CVE-2025-60556

HIGH · 7.5 CVSS v3.1 Published 2025-10-24
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
D-Link DIR600L Ax FW116WWb01 was discovered to contain a buffer overflow via the curTime parameter in the function formSetWizard1.

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

D-Link DIR600L Ax firmware FW116WWb01 contains a buffer overflow vulnerability in the formSetWizard1 function where the curTime parameter lacks proper bounds checking, allowing an attacker to overflow a fixed-size buffer with excessive data. This is a classic stack-based buffer overflow in the router's web management interface that could allow remote code execution or denial of service.

MitigationApply vendor firmware updates when available; until then, disable remote web management, restrict administrative access to trusted IPs only, and monitor for exploitation attempts.

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
Dir 600l FirmwareOperating system
Affected:= 1.16wwb01

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 firmware version
    Access the router's web management interface (typically at 192.168.0.1) and navigate to the Status or System section to view the firmware version. Alternatively, use the router's admin CLI if available and run: cat /proc/version or look for version info in the web UI source.
    Affected if The firmware version displayed is 1.16wwb01 exactly, indicating the specific affected release.
  2. Confirm web management interface is accessible
    Attempt to reach the router's web interface via HTTP or HTTPS on the LAN or WAN IP address. Check if the login page or formSetWizard1 endpoint responds.
    Affected if The web management interface is reachable, which is required for exploiting the buffer overflow in the formSetWizard1 function.
  3. Check if remote administration is enabled
    In the router's web UI, go to the Administration or Management settings section. Look for options such as 'Remote Management', 'Remote Access', or 'Web Management Access' that control whether the interface is accessible from the WAN side.
    Affected if Remote administration is enabled, meaning the vulnerable web interface is exposed beyond the local network.
  4. Verify the formSetWizard1 function exists
    If you have access to the router firmware binary or can inspect the web UI code, search for the 'formSetWizard1' function name. This function handles the curTime parameter that lacks bounds checking.
    Affected if The formSetWizard1 function is present in the firmware, which is the vulnerable component described in this CVE.

You are affected if your D-Link DIR600L runs firmware version 1.16wwb01 AND the web management interface (especially the formSetWizard1 handler) is accessible, either locally or remotely.

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 firmware updates when available; until then, disable remote web management, restrict administrative access to trusted IPs only, and monitor for exploitation attempts.

Fix this in Dir 600l Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2025-60556 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
  • 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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