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REVERSE-ENGINEERING

Reverse-Engineering

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GPT-6 Astra Tops ExploitBench With Perfect Security Score

GPT-6 Astra Tops ExploitBench With Perfect Security Score

ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 6.2 Simon Willison

OpenAI's GPT-6 Astra achieves 100% on ExploitBench and 99.2% on binary reverse engineering benchmarks, significantly outperforming its predecessor GPT-5.6 Sol on security-relevant tasks. The model's exceptional capability at offensive security benchmarks raises dual-use concerns, as frontier models with near-perfect exploit generation ability represent a meaningful capability uplift for threat actors. The article also notes the model's strong long-context performance, which has implications for processing large codebases or security artifacts.

Claude Mythos Generates Working Exploits for Firefox, Windows

Claude Mythos Generates Working Exploits for Firefox, Windows

ATLAS OWASP CRITICAL Active exploitation · Immediate action required ▲ 9.2 SecurityWeek

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.

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