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CVE-2025-6138

TOTOLINK T10 Firmware buffer overflow

8.8 HIGHPublic exploitEPSS 0.96%
  1. Published16 Jun 2025

Description

A vulnerability classified as critical was found in TOTOLINK T10 4.1.8cu.5207. Affected by this vulnerability is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument ssid5g leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

TOTOLINK T10 Firmware4.1.8cu.5207

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-6138 being actively exploited?

CVE-2025-6138 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.96%.

How severe is CVE-2025-6138?

CVE-2025-6138 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.96% probability of exploitation.

Which products are affected by CVE-2025-6138?

Affected products include TOTOLINK T10 Firmware.

How do I fix CVE-2025-6138?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-6138 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.