CVE-2026-7137: Totolink A8000RU CGI cstecgi.cgi setStorageCfg os command injection

Published Apr 27, 2026

Updated

A security vulnerability has been detected in Totolink A8000RU 7.1cu.643b20200521. This affects the function setStorageCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument sambaEnabled leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

Affected Software

1 affected component

TOTOLINK A8000RU=7.1cu.643_b20200521

Event History

Apr 27, 2026

CVE Published

via MITRE·03:45 PM

Data Sourced

via MITRE·03:45 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·04:16 PM

DescriptionSeverityWeakness

Oct 6, 58306

Event

via FIRST·01:26 PM

Frequently Asked Questions

What is the severity of CVE-2026-7137?

CVE-2026-7137 has been classified as a high severity vulnerability due to the potential for remote code execution.

How do I fix CVE-2026-7137?

To mitigate CVE-2026-7137, users should update their Totolink A8000RU firmware to the latest version where the vulnerability is patched.

Which systems are affected by CVE-2026-7137?

CVE-2026-7137 specifically affects Totolink A8000RU devices running version 7.1cu.643_b20200521.

What is the nature of the vulnerability in CVE-2026-7137?

CVE-2026-7137 is an OS command injection vulnerability that can be exploited through the setStorageCfg function in the CGI Handler.

Can CVE-2026-7137 be exploited remotely?

Yes, CVE-2026-7137 can be exploited remotely, allowing attackers to execute arbitrary commands on the affected device.