CVE-2026-9455

Critical

Published: 25/05/2026(UTC)Translated: 14/06/2026(UTC)NVD NIST

Summary

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521 affecting the UploadOpenVpnCert function in the /cgi-bin/cstecgi.cgi file of the Web Management Interface. Manipulation of the FileName argument leads to OS command injection.

Risk Assessment

Remote exploitation of this vulnerability is possible, posing a serious security threat to the system. The public disclosure of the exploit increases the risk of attacks.

Recommendation

It is recommended to update the device firmware to the latest version to eliminate this vulnerability. Additionally, monitor systems for unauthorized access attempts.

Original NVD description (English source)

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument FileName leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.