CVE-2026-9476: Totolink A8000RU Web Management cstecgi.cgi setPasswordCfg os command injection

Published May 25, 2026

Updated

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setPasswordCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument admpass leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used.

Affected Software

1 affected component

TOTOLINK A8000RU=7.1cu.643_b20200521

Event History

May 25, 2026

CVE Published

via MITRE·05:00 PM

Data Sourced

via MITRE·05:00 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2026-9476?

CVE-2026-9476 has a severity rating of critical, with a CVSS score of 9.8.

What kind of vulnerability is CVE-2026-9476?

CVE-2026-9476 is an OS command injection vulnerability affecting the Totolink A8000RU.

How can CVE-2026-9476 be exploited?

CVE-2026-9476 can be exploited by manipulating the 'admpass' argument in the setPasswordCfg function within the web management interface.

How do I fix CVE-2026-9476?

To fix CVE-2026-9476, it is recommended to update the Totolink A8000RU to the latest firmware that addresses this vulnerability.

What devices are affected by CVE-2026-9476?

CVE-2026-9476 affects the Totolink A8000RU model with firmware version 7.1cu.643_b20200521.

Company

Resources

Contact

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