🕳️ Vulnerabilities & CVEs

BlueHammer Drops: Rogue Researcher Dumps Windows Zero-Day Code After Microsoft Snub

GitHub lights up with BlueHammer exploit code. A researcher fed up with Microsoft's disclosure dance goes public, handing attackers a path to SYSTEM privileges on unpatched Windows machines.

Threat Digest Apr 07, 2026 4 min read
GitHub repository screenshot of BlueHammer Windows exploit code with researcher notes

⚡ Key Takeaways

  • BlueHammer is a zero-day local privilege escalation exploit leaked after Microsoft mishandled disclosure. 𝕏
  • It grants SYSTEM access via SAM database on Windows clients; partial on servers. 𝕏
  • Expect patches soon, but attackers are already tinkering — update now. 𝕏
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#BlueHammer #BlueHammer exploit #MSRC disclosure #Microsoft MSRC #Windows zero-day #privilege escalation

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Originally reported by Bleeping Computer

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