CVE-2018-4064: Sierra Wireless AirLink ES450 Firmware

High severity, CVSS 7.1. EPSS: 14.5% chance of exploitation in the next 30 days.

An exploitable unverified password change vulnerability exists in the ACEManager upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can cause a unverified device configuration change, resulting in an unverified change of the user password on the device. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Affected products

• Sierra Wireless AirLink ES450 Firmware: version 4.9.3 only

Published 2019-10-31. Last modified 2026-06-17.