CVE-2018-4063

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.

  • Published May 6, 2019
  • CVSS 8.8 high
  • 27.1% chance of exploitation in the next 30 days (EPSS)
  • In CISA's Known Exploited Vulnerabilities catalog
  • Public exploit code is available

Affected software

CVE-2018-4063 at the National Vulnerability Database