Introduction
Recently, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a critical vulnerability affecting Sierra Wireless AirLink ALEOS routers, identified as CVE-2018-4063, to its Known Exploited Vulnerabilities (KEV) catalog. This addition follows reports of active exploitation in the wild, raising significant concerns for IT security.
Key Details
Who: Sierra Wireless
What: Unrestricted file upload vulnerability (CVE-2018-4063)
When: CISA announcement made on December 12, 2025
Where: Impacting Sierra Wireless AirLink routers globally
Why: Exploitation enables remote code execution, posing severe security risks
How: Attackers can exploit the vulnerability via a malicious HTTP request, enabling file uploads with executable permissions. The ACEManager runs with root privileges, allowing harmful code to execute with elevated access.
Why It Matters
The exploitation of CVE-2018-4063 can significantly impact:
- Enterprise Security: Attackers can gain escalated privileges, leading to potential network breaches.
- Operational Technology (OT) Security: These routers are increasingly targeted in OT environments, making the need for robust security measures critical.
- Hybrid/Multi-Cloud Environments: Vulnerabilities in edge devices can compromise overall cloud security, affecting data integrity and compliance.
Takeaway for IT Teams
IT professionals should prioritize updating their Sierra Wireless devices or transitioning to supported alternatives before the deadline of January 2, 2026. Proactively addressing this vulnerability is essential for maintaining network integrity and safeguarding sensitive data.
For more curated news and infrastructure insights, visit TrendInfra.com.
