CVE-2026-101309

7 HIGH

Published 2026-10-15 · Updated 2026-10-16

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

The xHCI (USB 3) device model did not validate or save the event ring size provided by the guest. The size was re-read from guest memory on each use, and Transfer Request Block (TRB) fields were loaded without protection against concurrent modification by the guest. This race condition could be triggered by a guest running malicious, privileged code. A malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve's Capsicum sandbox.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-362

All references

https://security.freebsd.org/advisories/FreeBSD-SA-26:72.bhyve.asc

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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