Hackers exploited a critical zero-day vulnerability in a server running the KnowledgeDeliver learning management system (LMS) to deploy the Godzilla web shell.

CVE-2026-5426 enabled KnowledgeDeliver LMS attacks before February 24, 2026, leading to Cobalt Strike infections.

In a study published in IEEE Transactions on Software Engineering, researchers from Kyushu University have found that "flaky ...

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