The Frontier AI Vulnerability Burst: Industrializing Autonomous Zero-Day Discovery in Open-Source Software

## Executive Summary Frontier AI is accelerating vulnerability discovery and compressing attack windows: Palo Alto Networks' NOVA autonomous system scanned 3,915 open-source projects and confirmed 14,090 vulnerabilities (≈99.4% previously unreported), with ~39.7% rated High/Critical (CVSS 4.0), substantial supply-chain reach and many validated PoCs; the report details the multi-model agentic methodology, validation and containment controls, and recommends rapid virtual patching and industry collaboration to protect defenders.