CVE-2025-67189 — MEDIUM (6.5)

Vulnerability Description

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 Score

6.5

MEDIUM

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

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Totolink	A950Rg Firmware	4.1.2cu.5204_b20210112
Totolink	A950Rg	-

Related Weaknesses (CWE)

CWE-120

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A9ExploitThird Party Advisory

FAQ

What is CVE-2025-67189?

CVE-2025-67189 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 m...

How severe is CVE-2025-67189?

CVE-2025-67189 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-67189?

Check the references section above for vendor advisories and patch information. Affected products include: Totolink A950Rg Firmware, Totolink A950Rg.