CVE-2025-11444

TOTOLINK N600r Firmware buffer overflow

8.8 HIGHPublic exploitEPSS 1.04%

Published8 Oct 2025

Description

A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipulation of the argument wepkey leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly 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 N600r Firmware≤ 4.3.0cu.7866_b2022506

Remediation

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

References

https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.mdExploitThird Party Advisory
https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.md#reproduceExploit
https://vuldb.com/?ctiid.327381Permissions RequiredVDB Entry
https://vuldb.com/?id.327381Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.666915Third Party AdvisoryVDB Entry
https://www.totolink.net/Product

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2025-11444 being actively exploited?

CVE-2025-11444 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.04%.

How severe is CVE-2025-11444?

CVE-2025-11444 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.04% probability of exploitation.

Which products are affected by CVE-2025-11444?

Affected products include TOTOLINK N600r Firmware.

How do I fix CVE-2025-11444?

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-2025-11444 against the real software inventory on every managed device, every day. 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.