CVE-2026-7823

Critical

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

Summary

A security flaw has been discovered in Totolink A8000RU version 7.1cu.643_b20200521. The function setAppFilterCfg in the file /cgi-bin/cstecgi.cgi is vulnerable to OS command injection through manipulation of the argument enable.

Risk Assessment

An attacker can remotely exploit this vulnerability to execute unauthorized commands on the device, potentially leading to serious security breaches.

Recommendation

It is recommended to update the device firmware to the latest version to mitigate this vulnerability and to monitor the system for unauthorized activities.

Original NVD description (English source)

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setAppFilterCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable results in os command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.