CVE-2026-1686

High

Description

A security flaw has been discovered in Totolink A3600R 5.9c.4959. This issue affects the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. Performing a manipulation of the argument apcliSsid results in buffer overflow. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

SeverityHigh
CVSS8.8
Exploit probability—
ProductTotolink A3600r Firmware
PublishedJan 30, 2026
First seenJan 30, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
totolink a3600r_firmware5.9c.4959—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.