{"id":"CVE-2018-4063","aliases":["EUVD-2018-15849","GHSA-96pr-35f4-cf4c"],"status":"published","title":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of...","description":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.2726,"percentile":0.9807,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2019-05-06T18:43:31Z","modified":"2026-06-17T01:58:18Z","kev":{"date_added":"2025-12-12","due_date":"2026-01-02","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2025-12-12"},{"source":"kev","since":"2025-12-12"}],"products":[{"vendor":"sierra wireless","product":"airlink aleos"},{"vendor":"sierrawireless","product":"aleos"}],"references":[{"url":"http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html","tags":["x_refsource_MISC","x_transferred","Exploit","VDB Entry"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/108147","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link"]},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/","tags":["third-party-advisory","Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-4063"},{"url":"https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack"},{"url":"https://github.com/advisories/GHSA-96pr-35f4-cf4c"}],"sources":{"cve":[{"id":"CVE-2018-4063","description":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.","status":"published","published":"2019-05-06T18:43:31Z","modified":"2026-05-22T13:18:19.359Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:35:08.341767Z"}],"euvd":[{"id":"EUVD-2018-15849","description":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.","status":"published","published":"2019-05-06T18:43:31Z","modified":"2026-05-22T13:18:19Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2025-12-12","updated_at":"2026-11-02T18:21:12.491464Z"}],"ghsa":[{"id":"GHSA-96pr-35f4-cf4c","title":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of...","description":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.","status":"published","published":"2022-05-24T16:45:12Z","modified":"2025-12-12T21:31:28Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:05:11.404224Z"}],"kev":[{"id":"CVE-2018-4063","title":"Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability","description":"Sierra Wireless AirLink ALEOS contains an unrestricted upload of file with dangerous type vulnerability. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.","cwes":["CWE-434"],"kev":{"date_added":"2025-12-12","due_date":"2026-01-02","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:15.999436Z"}],"nvd":[{"id":"CVE-2018-4063","description":"An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.","status":"published","published":"2019-05-06T19:29:00.637Z","modified":"2026-06-17T01:58:18.623Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:04:57.307075Z"}]}}