CVE-2026-6157

HIGH

Totolink A800R app.so setAppEasyWizardConfig buffer overflow

Title source: cna

Description

A vulnerability was detected in Totolink A800R 4.1.2cu.5137_B20200730. This impacts the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. The manipulation of the argument apcliSsid results in buffer overflow. The attack can be executed remotely. The exploit is now public and may be used.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/357037

[Signature, Permissions Required] https://vuldb.com/vuln/357037/cti

[Third Party Advisory] https://vuldb.com/submit/793114

[Exploit] https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/01_Buffer_Overflow_setAppEasyWizardConfig.md

View Exploit ZIP pw:eip

[Product] https://www.totolink.net/

Scores

CVSS v3 8.8

EPSS 0.0009

EPSS Percentile 24.7%

Attack Vector NETWORK

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

Details

CWE

CWE-119 CWE-120

Status published

Products (1)

Totolink/A800R 4.1.2cu.5137_B20200730

Published Apr 13, 2026

Tracked Since Apr 13, 2026