CVE-2026-101309None▾ SunlitThe 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 concurr…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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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.
FreeBSD >= 15.1-RELEASE < p5FreeBSD >= 14.5-RELEASE < p2FreeBSD >= 14.4-RELEASE < p11Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-101310NoneMultiple vulnerabilities in bhyve device models
CVE-2026-101311NoneMultiple vulnerabilities in bhyve device models
CVE-2026-58099NoneWhen copying knotes from a parent kqueue to a child, the copy code did not correctly exclude marker knotes (used internally to track list traversal position) before marking them as in-flux and releasing the kqueue lock
CVE-2026-58100Nonekqueue_fork_copy_knote() indexed into the child's file descriptor table using a knote's file descriptor number without a bounds check
CVE-2026-58093High· 7.0The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock
CVE-2026-101307NoneWhen the PCM sample array needs to grow, the RACK stack doubles a 16-bit allocation counter