New Study Shows GPT-5.2 Can Reliably Develop Zero

Cybersecuritynews •Tushar Subhra Dutta • January 20, 2026

A groundbreaking experiment has revealed that advanced language models can now create working exploits for previously unknown security vulnerabilities. Security researcher Sean Heelan recently tested two sophisticated systems built on GPT-5.2 and Opus 4.5, challenging them to develop exploits for a zero-day flaw in the QuickJS Javascript interpreter. The results point to a significant shift […]

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GPT-5.2 Develops Exploits for Zero-Day Vulnerabilities A study has shown that GPT-5.2 can create working exploits for zero-day vulnerabilities, specifically targeting a flaw in the QuickJS Javascript interpreter. Security researcher Sean Heelan tested this capability using GPT-5.2 and Opus 4.5, indicating a significant advancement in exploit development by AI systems. 2 sources 26

New Study Shows GPT-5.2 Can Reliably Develop Zero

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