CVE-2025-67188

9.8 CRITICAL

Published: February 03, 2026 Modified: February 10, 2026

Description

A buffer overflow vulnerability exists in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The issue resides in the setRadvdCfg interface of the /lib/cste_modules/ipv6.so module. The function fails to properly validate the length of the user-controlled radvdinterfacename parameter, allowing remote attackers to trigger a stack buffer overflow.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-ipv6-setRadvdCfg-radvdinterfacename-buffer.md

Source: cve@mitre.org

Exploit Third Party Advisory

1 reference(s) from NVD

Quick Stats

CVSS v3 Score

9.8 / 10.0

EPSS (Exploit Probability)

0.8%

74th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-120

Affected Vendors

totolink

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