CVE-2025-67187 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

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

Related Weaknesses (CWE)

CWE-121

References

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

FAQ

What is CVE-2025-67187?

CVE-2025-67187 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...

How severe is CVE-2025-67187?

CVE-2025-67187 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-67187?

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