CVE-2026-9814

Summary

The X2000R router's formWizard newPass endpoint allows authenticated users to inject and execute arbitrary OS commands via a specially crafted HTTP request due to insufficient input sanitization (CWE-78), enabling full system compromise.

Exploitability

Exploitation requires valid administrative credentials and network access to the vulnerable endpoint; no public exploit exists, but the vulnerability is straightforward to trigger once authenticated.

Blast radius

Successful exploitation grants attackers full control of the device, enabling data exfiltration, pivot to internal networks, or persistent backdoor installation.

Detection

Monitor for HTTP POST requests to /formWizard with an unusually long or shell-metacharacter-laden 'newPass' parameter value in web server or application logs; look for subsequent execution of unexpected processes (e.g., /bin/sh, wget, curl) in system logs.

Prioritized remediation

Upgrade to TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 or later, as this is the fixed version explicitly named in the description.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.