CVE-2025-67186

CWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
9.8CRITICAL
EPSS
1.2%
top 21.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Totolink A950rg Firmware
Timeline
PublishedFeb 3

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

▶NVDtotolink/a950rg_firmware4.1.2cu.5204_b20210112

🔴Vulnerability Details

2
CVEList
CVE-2025-67186: TOTOLINK A950RG V4↗2026-02-03
▶
GHSA
GHSA-xf8g-xrmp-prrv: TOTOLINK A950RG V4↗2026-02-03
▶
CVE-2025-67186 (CRITICAL CVSS 9.8) | TOTOLINK A950RG V4.1.2cu.5204_B2021 | cvebase.io