What’s Vulnerable › Vulnerabilities

CVE-2019-11851

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-26 · updated 2026-06-17
• Weakness: CWE-120

Description

The ACENet service in Sierra Wireless ALEOS before 4.4.9, 4.5.x through 4.9.x before 4.9.5, and 4.10.x through 4.13.x before 4.14.0 allows remote attackers to execute arbitrary code via a buffer overflow.

Affected products

• SierraWireless ALEOS: from 4.10.0 before 4.14.0; from 4.5.0 before 4.9.5; before 4.4.9 — fixed in 4.14.0, 4.4.9, 4.9.5

How to fix

Upgrade to a fixed version: SierraWireless ALEOS 4.14.0, 4.4.9, 4.9.5. Check the vendor advisory for mitigations.

References

• http://source.sierrawireless.com/-/media/support_downloads/security-bulletins/pdf/swi-psa-2021-001.ashx
• https://www.sierrawireless.com/company/security/
• http://source.sierrawireless.com/-/media/support_downloads/security-bulletins/pdf/swi-psa-2021-001.ashx
• https://www.sierrawireless.com/company/security/

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