OpenAI Says GPT-6 Cyber Found 81 Firefox Flaws and Developed Exploits for 948 Linux Bugs

Summary

OpenAI says GPT-6 Cyber found 81 high-severity Firefox flaws and developed local privilege-escalation exploits for 948 Linux kernel vulnerabilities. Access is currently limited to approved Daybreak Red customers.

Key points

OpenAI says GPT-6 Cyber found 81 previously unknown high-severity Firefox vulnerabilities; Mozilla has released patches for many of them.
In Linux kernel research, OpenAI says the model identified 2,308 potential flaws, reproduced 1,724 vulnerabilities, and developed local privilege-escalation exploits for 948.
On the ExploitGym benchmark, GPT-6 Cyber exploited 48.5% of vulnerabilities, compared with 32.1% for GPT-5.6 Cyber.
OpenAI classifies the model's cybersecurity capabilities as “Critical,” up from “High” for its predecessor.
The model is not publicly available; access is limited to select approved Daybreak Red customers, with broader access planned.

Article Details

Event Type: OpenAI announced GPT-6 Cyber, an AI model for vulnerability discovery, exploit validation, and patch development.
Impact: OpenAI says GPT-6 Cyber found 81 previously unknown high-severity Firefox vulnerabilities and helped develop patches, many of which Mozilla has released. In Linux kernel research, it identified 2,308 potential flaws, reproduced 1,724 vulnerabilities, and developed local privilege-escalation exploits for 948. OpenAI classified the model's cybersecurity capabilities as “Critical.” Access is currently restricted to approved customers in Daybreak Red, with broader access planned.