CVE-2026-9386

Critical

Published: 24/05/2026(UTC)Translated: 14/06/2026(UTC)NVD NIST

Summary

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521, affecting the setLanguageCfg function in the /cgi-bin/cstecgi.cgi file of the Web Management Interface. Manipulation of the lang argument leads to OS command injection.

Risk Assessment

An attacker can remotely exploit this vulnerability, posing a serious security risk to the system. The publicly available exploit increases the likelihood of an attack.

Recommendation

It is recommended to update the software to the latest version to mitigate this vulnerability. Additionally, monitor systems for unauthorized access attempts.

Original NVD description (English source)

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument lang leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used.