CVE-2025-67187

critical · 9.8

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.

9.8

CVSS

0.5%

EPSS (exploit prob.)

39th

EPSS percentile

2026-02-03

Published

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

Weaknesses

CWE-121

Affected products

Vendor	Product	Affected versions
totolink	a950rg_firmware	4.1.2cu.5204_b20210112
totolink	a950rg	all versions

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-67187