Korean Air has acknowledged the theft of sensitive data belonging to 30,000 current and former employees in a serious data breach. The breach occurred via a supply-chain compromise at KC&D Service, the airline’s former catering subsidiary. Hackers exploited a critical flaw in Oracle E-Business Suite, tracked as CVE-2025-61882, that enabled code execution remotely without requiring any user interaction or authentication to login. Cl0p ransomware operators claimed responsibility for the attack, and after ransom demands were apparently ignored, they dumped almost 500 GB of stolen archives on their dark web site.
The intrusion occurred at KC&D, which, though it was sold to Hahn & Company in 2020, was still handling in-flight meals and duty-free services. Korean Air continues to own a 20% stake and has continued sharing employee data through KC&D’s ERP server. The attackers targeted Oracle EBS versions 12.2.3 through 12.2.14 to bypass authentication and reach sensitive systems. The vulnerability was publicly disclosed in early October 2025, after initial exploitation that started in August. Although Oracle promptly released patches, the combination of late detection and widespread exposure caused data exfiltration to spread across many victims.
This article has been indexed from CySecurity News – Latest Information Security and Hacking Incidents
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