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Cloud Security2 min readApril 18, 2026

Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet

A new Mirai botnet variant called Nexcorium is actively exploiting a vulnerability in TBK DVRs to compromise devices and recruit them into a distributed denial-of-service attack network. Organizations using TBK DVRs should immediately patch CVE-2024-3721

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