CVE-2026-9406 CRITICAL

CVE-2026-9406: Totolink A8000RU Web Management cstecgi.cgi setRemoteCfg os command injection

Vendor Totolink
Product A8000RU
Weakness CWE-78
Published May 24, 2026
Last update May 27, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setRemoteCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

Key dates

02Disclosure timeline

May 24, 2026 CVE published
May 27, 2026 Record updated