What’s Vulnerable › Vulnerabilities

CVE-2019-11853: ALEOS AT Command Injections

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% 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-77

Description

Several potential command injections vulnerabilities exist in the AT command interface of ALEOS before 4.11.0, and 4.9.4.

Affected products

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

How to fix

Upgrade to a fixed version: SierraWireless ALEOS 4.11.0, 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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