CVE-2026-101309
CVE-2026-101309 · Multiple vulnerabilities in bhyve device models
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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 7.0 · Élevée · EPSS 0,1%
- Publication
- Mise à jour
Produits et versions concernés
freebsd
- Versions du logiciel
- ≥ 15.1-RELEASE, < p5: Concernée (release)
- ≥ 14.5-RELEASE, < p2: Concernée (release)
- ≥ 14.4-RELEASE, < p11: Concernée (release)
Aucun correctif publié