CVE-2026-5679: Totolink a3300r

Medium severity, CVSS 5.5. EPSS: 2.5% chance of exploitation in the next 30 days.

A security vulnerability has been detected in Totolink A3300R 17.0.0cu.557_B20221024. The impacted element is the function vsetTr069Cfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument stun_pass leads to os command injection. The exploit has been disclosed publicly and may be used.

Affected products

• Totolink a3300r: version 17.0.0cu.557_B20221024 only

Published 2026-04-06. Last modified 2026-07-24.