CVE-2026-101311 bhyve - Remote Code Execution & Denial of Service

bhyve contains a race condition and improper validation in framebuffer and RFB modules, letting a malicious guest crash the bhyve process or execute arbitrary code in host userspace, exploit requires guest VM access.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
15 October 2026
Updated
15 October 2026
Weakness
CWE-362

Vendor fix

Update to the latest version with framebuffer and RFB module fixes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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