CVE-2018-4063
Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability
What is affected
| Vendor | Sierra Wireless |
|---|---|
| Product | AirLink ALEOS |
| Weakness | CWE-434 |
The vulnerability
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.
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.
US federal civilian agencies were required to act by 2 January 2026 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 12 Nov 2026, 21:26. Nothing here is our own assessment. For the technical scoring, see the NVD record below.