CVE-2026-9454: Totolink A8000RU Web Management cstecgi.cgi setOpenVpnCertGenerationCfg os command injection

Published May 25, 2026

Updated

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setOpenVpnCertGenerationCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument servername can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used.

Affected Software

1 affected component

TOTOLINK A8000RU=7.1cu.643_b20200521

Event History

May 25, 2026

CVE Published

via MITRE·11:30 AM

Data Sourced

via MITRE·11:30 AM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2026-9454?

CVE-2026-9454 has a critical severity rating of 9.8.

What vulnerabilities does CVE-2026-9454 exploit?

CVE-2026-9454 exploits the OS command injection vulnerability found in the setOpenVpnCertGenerationCfg function.

How do I fix CVE-2026-9454?

To fix CVE-2026-9454, update the Totolink A8000RU device to the latest firmware version that addresses this vulnerability.

What versions of software are affected by CVE-2026-9454?

CVE-2026-9454 affects the Totolink A8000RU version 7.1cu.643_b20200521.

What can attackers achieve with CVE-2026-9454?

Attackers can exploit CVE-2026-9454 to execute arbitrary operating system commands on the affected device.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.