CVE-2026-7124: Totolink a8000ru

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

A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument addrPrefixLen can lead to os command injection. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.

Affected products

• Totolink a8000ru: version 7.1cu.643_b20200521 only

Published 2026-04-27. Last modified 2026-06-17.