{"id":"CVE-2026-41222","published":"2026-10-20T21:17:18.653","lastModified":"2026-10-22T15:31:24.813","description":"A stack-based buffer overflow vulnerability exists in the boa formParentControl url functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.","cvssScore":9.1,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","cwes":["CWE-121"],"vendors":[],"products":[],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2392","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A stack-based buffer overflow in the formParentControl URL handler of the X2000R router allows authenticated attackers to overwrite stack memory and achieve remote code execution via a malicious HTTP request.","exploitability":"Exploitation requires valid authentication and sending a specially crafted HTTP request to the vulnerable endpoint; no public exploit exists yet, but the high CVSS score indicates low complexity once access is obtained.","blast_radius":"Successful exploitation grants full system compromise (confidentiality, integrity, availability) on the affected device, potentially enabling pivot to internal networks or persistent backdoor installation.","remediation":"Upgrade to TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 or later, as this is the only version explicitly referenced in the description as affected; until then, disable remote management or restrict access to the /formParentControl endpoint to trusted IPs only.","detection":"Look for HTTP POST requests to /formParentControl with unusually long or malformed parameter values in web server logs; anomalies in request size or content length compared to typical usage patterns may indicate exploitation attempts.","tags":["stack-overflow","rce","authenticated","web-app","embedded"],"model":"garnet-coder","analyzedAt":"2026-10-25T08:51:57.903Z"}}