# CVE-2018-4063: A Sierra Wireless AirLink ALEOS bug is being used in attacks

Status: Being used now (CISA KEV, added 2025-12-12)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Sierra Wireless AirLink ALEOS (CVE-2018-4063) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2018-4063. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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.

## Sources
- https://www.cisa.gov/news-events/ics-advisories/icsa-19-122-03
- https://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---swi-psa-2019-003
- https://source.sierrawireless.com/resources/airlink/hardware_reference_docs/airlink_es450_eol
- https://nvd.nist.gov/vuln/detail/CVE-2018-4063
- https://nvd.nist.gov/vuln/detail/CVE-2018-4063

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.