What is the BlueHammer Windows zero-day?

Local privilege escalation in win32kbase.sys allowing kernel takeover. PoC public on GitHub.

How does BlueHammer affect Windows users?

High risk for unpatched 10/11 systems. Local attackers gain full control—update ASAP.

Why did Chaotic Eclipse release BlueHammer publicly?

Frustration with Microsoft's slow disclosure and low bounties after months of ignored reports.

BlueHammer Zero-Day Exposes Microsoft's Patch Paralysis

Chaotic Eclipse just unleashed BlueHammer—a Windows zero-day PoC for full system takeover. Microsoft's slow disclosure? It's fueling researcher rage and real risks.

Threat Digest Apr 11, 2026 3 min read

BlueHammer Windows zero-day exploit PoC code screenshot with kernel takeover demo

⚡ Key Takeaways

BlueHammer PoC enables local user to full system takeover via kernel heap overflow. 𝕏
Researcher Chaotic Eclipse blasts Microsoft for poor bug disclosure practices. 𝕏
Echoes past leaks like EternalBlue; predicts more public zero-day drops ahead. 𝕏

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Threat Digest

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#BlueHammer #BlueHammer exploit #Chaotic Eclipse #Microsoft bug bounty #Microsoft exploit #Windows zero-day #exploit disclosure #privilege escalation

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Originally reported by Dark Reading

⚡ Key Takeaways

The 60-Second TL;DR

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