Dsl6740c FirmwareOperating system · Dlink

CVE-2024-11068

CRITICAL · 9.8 CVSS v3.1 Published 2024-11-11
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
The D-Link DSL6740C modem has an Incorrect Use of Privileged APIs vulnerability, allowing unauthenticated remote attackers to modify any user’s password by leveraging the API, thereby granting access to Web, SSH, and Telnet services using that user’s account.

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

The D-Link DSL6740C modem contains an API vulnerability that allows unauthenticated remote attackers to modify any user's password without authentication. By exploiting this privileged API, attackers can gain unauthorized access to the device's Web interface, SSH, and Telnet services using the compromised account credentials.

MitigationApply vendor-provided firmware patches when available. Until a patch is released, restrict network access to the device's management interfaces using firewall rules or network segmentation, and disable Telnet services if not required.

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
Dsl6740c FirmwareOperating system
Affected:all versions

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. Confirm device model
    Access the device's web interface or check the device label/marketing to verify the model is D-Link DSL6740C
    Affected if The device is a D-Link DSL6740C model
  2. Check management interface exposure
    Determine if the device's web interface (HTTP/HTTPS), SSH, or Telnet ports are accessible from untrusted networks such as the internet. Review firewall rules, NAT configurations, or port forwarding rules that may expose these services externally.
    Affected if The management interface (web, SSH, or Telnet) is directly accessible from untrusted networks without firewall protection
  3. Verify SSH service status
    Attempt to connect to the device's SSH port (typically port 22) from an external IP or check the device's service configuration to see if SSH is enabled
    Affected if SSH service is enabled and accessible on the device
  4. Verify Telnet service status
    Attempt to connect to the device's Telnet port (typically port 23) or check the device's configuration to see if Telnet is enabled
    Affected if Telnet service is enabled and accessible on the device
  5. Review user accounts for unauthorized changes
    Log into the device's administration panel and review the list of configured user accounts. Check for any accounts that were not created by the legitimate administrator or look for signs of password changes that were not performed by authorized personnel.
    Affected if There are unexpected user accounts or evidence of unauthorized password modifications

The environment is affected if the device is a D-Link DSL6740C with management interfaces (web, SSH, or Telnet) exposed to untrusted networks, regardless of firmware version.

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-provided firmware patches when available. Until a patch is released, restrict network access to the device's management interfaces using firewall rules or network segmentation, and disable Telnet services if not required.

Fix this in Dsl6740c Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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Scan for this in your stack

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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-2024-11068 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
  • No spam, self-promotion, credentials, or personal data