{"id":"CVE-2026-10136","published":"2026-10-20T21:17:16.360","lastModified":"2026-10-23T23:17:41.867","description":"A heap-based buffer overflow vulnerability exists in the boa formUpload() 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-122"],"vendors":[],"products":[],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2026-2436","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A heap-based buffer overflow in the formUpload() function of the X2000R router's web interface allows authenticated attackers to execute arbitrary code by sending a specially crafted HTTP request, leading to full system compromise including confidentiality, integrity, and availability impacts.","exploitability":"Exploitation requires valid authentication credentials due to the PR:H (Privileges Required: High) in the CVSS vector, making it difficult for unauthenticated attackers but feasible for compromised or leaked credentials.","blast_radius":"Successful exploitation grants full remote code execution with system-level privileges on the vulnerable device, enabling complete takeover of the router and potential lateral movement within the internal network.","remediation":"Upgrade to TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 or later, as this is the exact version listed in the description where the vulnerability is present; no fixed version is stated beyond this build.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["heap-overflow","rce","web-app","authenticated","embedded-device"],"model":"garnet-coder","analyzedAt":"2026-10-25T08:50:34.980Z"}}