CVE-2019-11859: Sierra Wireless ALEOS

High severity, CVSS 8.8. EPSS: 2% chance of exploitation in the next 30 days.

A buffer overflow exists in the SMS handler API of ALEOS before 4.13.0, 4.9.5, 4.9.4 that may allow code execution as root.

Affected products

• Sierra Wireless ALEOS: up to and including 4.12.0; up to and including 4.9.4; up to and including 4.4.8

Published 2020-08-21. Last modified 2026-06-17.