CVE-2026-9475: Totolink A8000RU Web Management cstecgi.cgi setIpQosRules os command injection

Published May 25, 2026

Updated

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument Comment causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

Affected Software

1 affected component

TOTOLINK A8000RU=7.1cu.643_b20200521

Event History

May 25, 2026

CVE Published

via MITRE·04:45 PM

Data Sourced

via MITRE·04:45 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2026-9475?

CVE-2026-9475 has a severity rating of critical with a score of 9.8.

How do I fix CVE-2026-9475?

To mitigate CVE-2026-9475, it is recommended to update the firmware of the Totolink A8000RU router to the latest version.

What type of vulnerability is CVE-2026-9475?

CVE-2026-9475 is classified as an OS command injection vulnerability.

What software is affected by CVE-2026-9475?

CVE-2026-9475 affects the Totolink A8000RU hardware running version 7.1cu.643_b20200521.

Can CVE-2026-9475 be exploited remotely?

Yes, CVE-2026-9475 can be exploited remotely, allowing attackers to execute arbitrary commands on the affected system.

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