RCE in Totolink X5000r

CVE-2025-70329

TOTOLink X5000R v9.1.0cu_2415_B20250515 contains an OS command injection vulnerability in the setIptvCfg handler of the /usr/sbin/lighttpd executable. The vlanVidLan1 (and other vlanVidLanX) parameters are retrieved via Uci_Get_Str and passed to the CsteSystem function without adequate validation or filtering. This allows an authenticated attacker to execute arbitrary shell commands with root privileges by injecting shell metacharacters into the affected parameters.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-70329?
CVE-2025-70329 is a high-severity vulnerability in Totolink X5000r, classified under OS Command Injection. CVSS score: 8.0/10. Published 2026-02-23.
How severe is CVE-2025-70329?
High severity. CVSS v3 base score is 8.0 out of 10.