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Achin Bansal
Achin Bansal

Posted on • Originally published at gridthegrey.com

Claude Mythos Weaponises N-Day Vulnerabilities Into Working Exploits Within Hours

Forensic Summary

Anthropic's Claude Mythos Preview model demonstrated the ability to generate functional proof-of-concept exploits targeting known Firefox and Windows vulnerabilities within minutes to hours, compressing the traditional patch gap window dramatically. Testing also revealed that public Anthropic models with safety guardrails disabled could produce working exploits, though at a lower success rate than Mythos. The findings underscore how frontier LLMs are shifting the threat landscape for unpatched N-day vulnerabilities by automating and accelerating exploit development previously bottlenecked by scarce reverse engineering expertise.


Read the full technical deep-dive on Grid the Grey: https://gridthegrey.com/posts/claude-mythos-weaponises-n-day-vulnerabilities-into-working-exploits-within/

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