Is CVE-2018-4063 actively exploited?

CVE-2018-4063 has no public evidence of in-the-wild exploitation as of 2025-12-15.

What is the CVSS score for CVE-2018-4063?

CVE-2018-4063 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-4063?

Patch guidance is available from sierrawireless security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-4063.

Fix CVE-2018-4063 - HIGH sierrawireless aleos

Q: Which products are affected by CVE-2018-4063?

3 products: sierrawireless aleos, sierrawireless aleos, sierrawireless aleos.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-434 · Unrestricted File Upload CWE-434 · Unrestricted File Upload

Metadata

Primary Vendor: SIERRAWIRELESS
Published: 5/6/2019
Last Modified: 12/15/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2018-4063

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary