CVE-2026-7121

critical

Description

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument wizard causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.

References

https://www.totolink.net/

https://vuldb.com/vuln/359720/cti

https://vuldb.com/vuln/359720

https://vuldb.com/submit/800933

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_306/README.md

Details

Source: Mitre, NVD

Published: 2026-04-27

Updated: 2026-04-27

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

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

Severity: Critical