CVE-2026-9408: Totolink a8000ru

Critical severity, CVSS 9.8. EPSS: 3.3% chance of exploitation in the next 30 days.

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setStaticDhcpRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enable results in os command injection. The attack may be performed from remote. The exploit is now public and may be used.

Affected products

• Totolink a8000ru: version 7.1cu.643_b20200521 only

Published 2026-05-25. Last modified 2026-07-23.