CVE-2025-70329: totolink x5000r_firmware OS Command Injection

Vulnerability summary

CVE-2025-70329 is a high (CVSS 8.0) OS Command Injection vulnerability in totolink x5000r_firmware. EPSS estimates a 3.44% chance of exploitation in the next 30 days, higher than 88.8% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 23-02-2026
   PublishedVulnerability first disclosed.
2. 23-02-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.