CVE-2026-105484: TOTOLINK X6000R UploadFirmwareFile cstecgi.cgi firmware_check os command injection

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-06 · updated 2026-10-06
Weakness: CWE-77

Description

A security vulnerability has been detected in TOTOLINK X6000R 9.4.0cu.652_B20230116. The impacted element is the function firmware_check of the file /cgi-bin/cstecgi.cgi of the component UploadFirmwareFile Handler. Such manipulation of the argument file_name leads to os command injection. The attack may be performed from remote.

Affected products

TOTOLINK X6000R: 9.4.0cu.652_B20230116

References

https://vuldb.com/cve/CVE-2026-105484
https://vuldb.com/submit/984434
https://vuldb.com/vuln/413619
https://vuldb.com/vuln/413619/cti
https://www.totolink.net/

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