Home / Vulnerabilities / CVE-2018-4063
HIGH SEVERITY
CVE-2018-4063 Sierra Wireless · AirLink ALEOS

Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH
8.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

0.80 %
Predictive Probability
Percentile Rank
73.7 th

Documented as more likely to be exploited than 73.7% of known CVEs.

Detection Date

Dec 12, 2025

Remediation Due

Jan 02, 2026

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

CISA

CISA Advisory

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/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://source.sierrawireless.com/resources/airlink/hardware_reference_docs/airlink_es450_eol
NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2018-4063