{"id":"CVE-2026-65184","published":"2026-10-26T15:16:41.627","lastModified":"2026-10-26T18:41:21.450","description":"The root-privileged `wsserver` terminal-bridge daemon builds a shell command from client-supplied WebSocket fields and passes it to `system()` and `popen()` without quoting, escaping, or character-set validation. The daemon's public-key session path performs no appliance-session check.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://www.runzero.com/advisories/avocent-acs8000-wsserver-cmdinj-cve-2026-65184","tags":[]},{"url":"https://www.runzero.com/blog/lights-out-exposed/","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The wsserver daemon executes arbitrary shell commands built from untrusted WebSocket input without sanitization, enabling remote code execution as root.","exploitability":"Exploitation is straightforward for an unauthenticated attacker over the network due to missing input validation and direct use of system() and popen().","blast_radius":"Successful exploitation grants full system compromise with root privileges, affecting confidentiality, integrity, and availability of the host.","remediation":"Upgrade to wsserver version 2.590 or later, which includes proper input sanitization and appliance-session validation.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","shell-injection","root-privilege","websocket","ics"],"model":"garnet-coder","analyzedAt":"2026-10-27T08:48:25.882Z"}}