CVE-2025-67186
Critical
Description
TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability in the setUrlFilterRules interface of /lib/cste_modules/firewall.so. The vulnerability occurs because the `url` parameter is not properly validated for length, allowing remote attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or denial of service.
SeverityCritical
CVSS9.8
Exploit probability—
ProductTotolink A950rg Firmware
PublishedFeb 3, 2026
First seenFeb 3, 2026
Weakness typeCWE-120CWE-120
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| totolink a950rg_firmware | 4.1.2cu.5204_b20210112 | — |
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