Vulnerability record

CVE-2026-129444

criticalCVSS 4.0 9.3Published · D-Link

The short answer

CVE-2026-129444 affects D-Link DSL-6740C and is rated critical (CVSS 9.3). It is not in CISA's Known Exploited Vulnerabilities catalog.

What it is

A vulnerability was identified in D-Link DSL-6740C 20131126. This affects an unknown function of the file /etc/templates/ftpd/ftpd_conf.php of the component FTP Daemon. Such manipulation leads to hard-coded credentials. The attack can be executed remotely. The exploit is publicly available and might be used.

Weakness: CWE-259, CWE-798.

Severity

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploited (CISA KEV)

Not listed

CISA lists confirmed exploitation only

EPSS, next 30 days

No score

FIRST scores CVEs within a day of publication

How it can be exploited

Attack vector
Network
Attack complexity
Low
Attack requirements
None
Privileges required
None
User interaction
None
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Affected products

DSL-6740C. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2026-129444 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog as of 2026-11-15.

How do I fix CVE-2026-129444?

Follow the vendor advisory in the references below. NVD lists the affected versions under its configurations.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Deferred. The description is NVD's text, quoted as published.

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