{"id":"CVE-2026-40615","published":"2026-10-20T21:17:18.393","lastModified":"2026-10-22T15:31:24.813","description":"A stack-based buffer overflow vulnerability exists in the boa formParentControl deviceName 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-2026-2393","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"A stack-based buffer overflow in the formParentControl deviceName functionality of X2000R allows authenticated attackers to overwrite the stack and execute arbitrary code via a crafted 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 gained.","blast_radius":"Successful exploitation grants full system compromise (confidentiality, integrity, availability) on the device, potentially enabling lateral movement within the local network.","remediation":"Upgrade to TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 or later, as this is the only fixed version explicitly named in the description.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["stack-overflow","rce","authenticated","web","embedded"],"model":"garnet-coder","analyzedAt":"2026-10-25T08:51:40.011Z"}}