CVSS 4.0
9.3 criticalCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HCVE-2026-40855
Critical (9.3). EPSS 1.6% chance of exploitation in the next 30 days.
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
Severity
- EPSS
- 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
- CWE
- CWE-78
- Published
- Modified
- Record from
- the NVD, synced