CVE-2025-67187

Published: Feb 3, 2026Modified: Feb 10, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

A stack-based buffer overflow vulnerability was identified in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The flaw exists in the setIpQosRules interface of /lib/cste_modules/firewall.so where the comment parameter is not properly validated for length.

Affected (1)

Products: Totolink: A950rg Firmware

Totolink

1 product

A950rg Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Totolink A950rg Firmware	Version 4.1.2cu.5204_b20210112

Running on/with	Platform Versions
Totolink A950rg	All versions

Related CWEs

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References (1)

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-setIpQosRules-comment-buffer.md

Source: cve@mitre.org

ExploitThird Party Advisory

Timeline

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