CVE-2026-1686

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-119 CWE-120

Affected software

Vendor	Product	Versions
Totolink	A3600R	5.9c.4959

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.mdExploit, Third Party Advisory
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md#pocExploit
https://vuldb.com/?ctiid.343480Permissions Required, VDB Entry
https://vuldb.com/?id.343480Third Party Advisory, VDB Entry
https://vuldb.com/?submit.740888Third Party Advisory, VDB Entry
https://www.totolink.net/Product

Timeline

Published: Jan 30, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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