DeepSeek V4.1-Flash-1017 built a Chrome sandbox escape exploit in 12 hours

A cybersecurity researcher used DeepSeek's V4.1-Flash-1017 model to build a multi-stage memory corruption exploit that escapes Chrome's browser sandbox in about 12 hours. The case strengthens calls in Washington to restrict open-weight AI models from China.

• The multi-stage memory corruption exploit was built in roughly 12 hours
• V4.1-Flash-1017 is tuned for agentic workloads and iterative problem solving
• DeepSeek raised over $22 billion in new capital in about four months
• DeepInfer serves 155 trillion tokens per day at roughly 82% gross margin