CVE-2025-51390: totolink n600r_firmware OS Command Injection

Vulnerability summary

CVE-2025-51390 is a critical (CVSS 9.8) OS Command Injection vulnerability in totolink n600r_firmware. EPSS estimates a 1.81% chance of exploitation in the next 30 days, higher than 78.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 04-08-2025
   PublishedVulnerability first disclosed.
2. 05-07-2026
   Last modifiedVulnerability information updated.

Description

TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin parameter in the setWiFiWpsConfig function.

• 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.