{"id":"CVE-2026-40855","published":"2026-09-16T12:17:03.673","lastModified":"2026-09-16T19:14:25.980","description":"WNC T-Mobile 5G Box IDU router is vulnerable to a command injection. The vulnerability exists in the ping functionality within the /cgi-bin/portal.cgi endpoint, specifically affecting the ping_ip, ping_size, and ping_times POST parameters. The root cause is the failure to verify and sanitize user-supplied input before incorporating it into a system command. This allows an authenticated attacker to execute arbitrary commands on the shell and gain root access to the system.This issue has been fixed in firmware version 1.1.0.651412","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://cert.pl/posts/2026/09/CVE-2026-40854","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}