CVE-2026-9433 CRITICAL

CVE-2026-9433: Totolink A8000RU Web Management cstecgi.cgi setMacFilterRules os command injection

Vendor Totolink
Product A8000RU
Weakness CWE-78
Published May 25, 2026
Last update May 26, 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. This issue affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument enable causes os command injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Key dates

02Disclosure timeline

May 25, 2026 CVE published
May 26, 2026 Record updated