The ping_from parameter of ping_tracerte.cgi in the web UI of Telstra Smart Modem Gen 2 (Arcadyan LH1000), firmware versions < 0.18.15r, was not properly sanitized before being used in a system call, which could allow an authenticated attacker to achieve command injection as root on the device. 

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-43477
• https://www.tenable.com/security/research/tra-2023-19