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MEDIUM2026-04-18via TheHackerNews

🚨 Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet Breach — Data Exposed

Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet suffered a data breach. Here's what happened, what data was exposed, and what you should do right now.

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ACCOUNTS
MEDIUM
SEVERITY
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DATA TYPES

What Happened

Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai-botnet variants on compromised devices, according to findings from Fortinet FortiGuard Labs and Palo Alto Networks Unit 42.

The attack targeting TBK DVR devices has been found to exploit CVE-2024-3721 (CVSS score: 6.3), a medium-severity command injection vulnerability affecting

Impact

  • Affected accounts: Under investigation
  • Data exposed: user data
  • Severity: MEDIUM
  • Source: [TheHackerNews](https://thehackernews.com/2026/04/mirai-variant-nexcorium-exploits-cve.html)

    • What You Should Do

    If you have an account with Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet, take these steps immediately:

  • **Change your password** — Use a unique, strong password (16+ chars with mixed case, numbers, symbols)
  • **Enable 2FA** — Turn on two-factor authentication if available
  • **Check your email** — Search for breach notifications from Mirai Variant Nexcorium Exploits CVE-2024-3721 to Hijack TBK DVRs for DDoS Botnet
  • **Monitor your accounts** — Watch for unauthorized access on any service where you reused the same password
  • **Scan your site** — If you run a website, [run a free ScanMyVibe scan](https://scanmyvibe.co/scan) to check if your own security headers and configurations protect against common attack vectors

    • Is Your Website Secure?

    Data breaches often exploit weak security configurations — missing Content-Security-Policy headers, misconfigured CORS, exposed API keys. These are exactly the issues ScanMyVibe detects in under 30 seconds.

    [Scan your site free →](https://scanmyvibe.co/scan)

    Timeline

  • 2026-04-18 — Breach reported
  • 2026-04-18 — ScanMyVibe breach alert published
  • Ongoing — Investigation in progress

    • This article is auto-generated by ScanMyVibe's breach monitoring system. Sources are verified but details may evolve as investigations progress. Last updated: 2026-04-18.

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