PT-2026-5954 · Totolink · Totolink A950Rg

Published 2026-02-03 · Updated 2026-02-10 · CVE-2025-67186

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOLINK A950RG version 4.1.2cu.5204 B20210112

Description The software contains a buffer overflow issue in the setUrlFilterRules interface of /lib/cste modules/firewall.so. The issue is due to insufficient validation of the length of the url parameter, which could allow a remote attacker to trigger a buffer overflow. This may lead to arbitrary code execution or a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2025-67186

Affected Products

Totolink A950Rg

References · 5

• 🔥 https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-setUrlFliterRules-url-buffer.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-67186 · Security Note
• https://osv.dev/vulnerability/CVE-2025-67186 · Vendor Advisory
• https://twitter.com/TheHackerWire/status/2019125005041431013 · Twitter Post
• https://t.me/cveNotify/151547 · Telegram Post