CVE-2026-7241: Totolink A8000RU CGI cstecgi.cgi setWiFiBasicCfg os command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-28 · updated 2026-10-26
Weakness: CWE-77

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument wifiOff results in os command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used.

Affected products

Totolink A8000RU: 7.1cu.643_b20200521

References

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_325/README.md
https://vuldb.com/submit/803086
https://vuldb.com/vuln/359848
https://vuldb.com/vuln/359848/cti
https://www.totolink.net/

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