{"id":"CVE-2026-9660","published":"2026-10-20T21:17:22.613","lastModified":"2026-10-23T23:19:50.730","description":"Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter 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 these vulnerabilities. This vulnerability deals with the vpnPassword parameter.","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-2026-2425","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"Stack-based buffer overflow in the formFilter functionality of X2000R's VPN password handling allows authenticated remote attackers to execute arbitrary code by sending a malicious HTTP request with an oversized vpnPassword parameter.","exploitability":"Exploitation requires valid authentication and a single crafted HTTP request; no user interaction is needed, but the attacker must already have valid credentials.","blast_radius":"Successful exploitation grants full system compromise (confidentiality, integrity, availability) on the vulnerable device, potentially enabling pivot to internal networks if the device resides in a trusted zone.","remediation":"Upgrade to TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 or later, as this is the fixed version explicitly named in the description.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","buffer-overflow","web","authenticated"],"model":"garnet-coder","analyzedAt":"2026-10-26T08:46:01.456Z"}}