Introduction
Recent discoveries have unveiled significant vulnerabilities in eSIM technology, particularly affecting devices powered by Kigen’s eUICC cards. This research, conducted by Security Explorations, highlights how attackers could exploit these flaws, putting user data at serious risk.
Key Details
- Who: Security Explorations, a cybersecurity research lab.
- What: A vulnerability in Kigen’s eUICC cards that could allow non-verified applets to be installed, leading to potential data breaches.
- When: Findings disclosed in July 2025.
- Where: Primarily impacts IoT devices globally.
- Why: The underlying issue lies in the GSMA TS.48 Generic Test Profile, versions 6.0 and earlier, which permitted the installation of harmful applets.
- How: Attackers would need physical access to the eUICC and utilize publicly available keys to exploit the vulnerability.
Why It Matters
This vulnerability has far-reaching implications for various areas of IT infrastructure:
- Enterprise Security: Heightened risks of data breaches and unauthorized access to sensitive information.
- IoT Deployment: Affects how organizations manage and secure IoT devices, essential for smart operations.
- Multi-Cloud Strategies: Vulnerabilities in eSIM could impact secure communications across cloud-based platforms.
- Compliance: Companies may face regulatory challenges in protecting consumer data.
Takeaway for IT Teams
IT professionals should monitor updates from Kigen and assess their eSIM deployments. Evaluating existing eUICC systems for security enhancements will be crucial in mitigating potential risks linked to these vulnerabilities.
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