What’s Vulnerable › Vulnerabilities

CVE-2019-11862: ALEOS SSH Service Allows Traffic Proxying

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-08-21 · updated 2026-06-17

Description

The SSH service on ALEOS before 4.12.0, 4.9.5, 4.4.9 allows traffic proxying.

Affected products

• SierraWireless ALEOS: before 4.4.9; from 4.9.0 before 4.9.5 — fixed in 4.4.9, 4.9.5

How to fix

Upgrade to a fixed version: SierraWireless ALEOS 4.4.9, 4.9.5. Check the vendor advisory for mitigations.

References

• https://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---swi-psa-2019-004/
• https://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---swi-psa-2019-004/

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