QwikSec

Security Database

CVE

CWE

Training

CVE-2026-1686

Published: Jan 30, 2026

Modified: Feb 23, 2026

PUBLISHED

CVSS v3.1

8.8

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.

Vendor	Product	Versions
Totolink	A3600R	affected `5.9c.4959`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

VDB-343480 | Totolink A3600R app.so setAppEasyWizardConfig buffer overflow

vdb-entry

technical-description

VDB-343480 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #740888 | TOTOLINK A3600R V5.9c.4959 Buffer Overflow

third-party-advisory

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md

related

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/4959-apcliSsid-setAppEasyWizardConfig.md#poc

exploit

https://www.totolink.net/

product

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