The Cybersecurity and Infrastructure Security Agency (CISA) has added a critical vulnerability affecting Sierra Wireless routers to its Known Exploited Vulnerabilities Catalog. This flaw is actively being exploited, posing a significant risk to affected systems.

Understanding the Sierra Wireless Vulnerability

The vulnerability in Sierra Wireless routers allows for remote code execution (RCE) attacks. This means attackers can potentially execute malicious code on compromised devices without direct physical access, leading to unauthorized control and potential data breaches.

CISA’s Directive and Mitigation

CISA’s inclusion of this flaw in its catalog underscores its active exploitation and the urgency for organizations to address it. Agencies and organizations using Sierra Wireless routers are directed to review their systems and apply necessary patches or mitigations to prevent RCE attacks.

Source: https://thehackernews.com/2025/12/cisa-adds-actively-exploited-sierra.html