PT-2026-34678 · Totolink · A3300R Firmware

Svigo-O · Published 2026-04-23 · Updated 2026-04-23 · CVE-2026-31181

NVD

CVSS v3.1

9.8

Critical

Base vector

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

An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557 B20221024 allowing attackers to execute arbitrary commands via the stunServerAddr parameter to /cgi-bin/cstecgi.cgi.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-31181

Affected Products

A3300R Firmware

References · 2

• 🔥 https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-stun-server-addr-cmd-injection · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-31181 · Security Note