CVE-2026-9457
CriticalCVSS 9.8Exploitation Probability (EPSS)
High risk80th percentile - higher than 80% of all known CVEs
Summary
A vulnerability in the Totolink A8000RU router version 7.1cu.643_b20200521 allows a remote attacker to inject OS commands via the FileName argument in the UploadFirmwareFile function of the web management interface.
Risk Assessment
Risk of remote compromise of the router, potentially leading to network security breaches and traffic interception.
Recommendation
Update the router firmware to the latest version if available. Restrict access to the management interface to trusted networks only.
Original NVD description (English source)
A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.