CVE-2026-1686
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
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.
Analysis
Buffer overflow in Totolink A3600R firmware version 5.9c.4959 allows authenticated remote attackers to execute arbitrary code through the setAppEasyWizardConfig function via a malformed apcliSsid parameter. Public exploit code exists for this vulnerability and no patch is currently available. …
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Remediation
Within 24 hours: Identify all Totolink A3600R 5.9c.4959 devices in your network inventory and assess their exposure (internet-facing, internal-only, or DMZ placement). Within 7 days: Implement compensating controls (network segmentation, WAF rules, feature disabling) and consider temporarily isolating non-critical affected devices. …
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External POC / Exploit Code
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