---
id: 8899
title: "Claude Wrote a Full FreeBSD Remote Kernel RCE with Root Shell (CVE-2026-4747)"
cve: CVE-2026-4747
source_domain: calif.io
source_url: "https://calif.io/research/freebsd-rce"
published_at: "2026-03-31T00:00:00Z"
tags: ["ai-security", "rce", "vulnerability-research", "exploitation", "claude", "ai-agent", "freebsd", "madbugs", "kernel-rce"]
phying_url: "https://phying.com/item/8899"
lang: en
---

# Claude Wrote a Full FreeBSD Remote Kernel RCE with Root Shell (CVE-2026-4747)

## Summary

To our knowledge, this is the first remote kernel exploit both discovered and exploited by an AI.

## Intelligence Metadata

- **Sources:** calif.io
- **CVE:** CVE-2026-4747
- **Published:** 2026-03-31T00:00:00Z
- **Original:** https://calif.io/research/freebsd-rce
- **Phying News:** https://phying.com/item/8899