CVE-2025-67189

A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-setParentRules-urlKeyWord-buffer.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5204_b20210112:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a950rg:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-03 18:16

Updated : 2026-02-10 14:15

NVD link : CVE-2025-67189

Mitre link : CVE-2025-67189

CVE.ORG link : CVE-2025-67189

JSON object : View

Products Affected

totolink

a950rg_firmware
a950rg

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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