CVE-2019-11847: ALEOS User Root Shell Escalation

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-21 · updated 2026-06-17
Weakness: CWE-269

Description

An improper privilege management vulnerabitlity exists in ALEOS before 4.11.0, 4.9.4 and 4.4.9. An authenticated user can escalate to root via the command shell.

Affected products

SierraWireless ALEOS: before 4.11.0; before 4.9.4; before 4.4.9 — fixed in 4.11.0, 4.4.9, 4.9.4

How to fix

Upgrade to a fixed version: SierraWireless ALEOS 4.11.0, 4.4.9, 4.9.4. Check the vendor advisory for mitigations.

References

https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2020-004/
https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2020-004/

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