CVE-2026-101310

The HDA audio device model did not check for zero-length Buffer Descriptor List (BDL) entries when starting a stream. A zero-length entry caused an out-of-bounds read or write during DMA transfer processing. BDL fields were also subject to modification by the guest after validation. 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 v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

15 Oct 2026, 16:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.0

15 Oct 2026, 08:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-15 08:16

Updated : 2026-10-16 04:18

NVD link : CVE-2026-101310

Mitre link : CVE-2026-101310

CVE.ORG link : CVE-2026-101310

JSON object : View

Products Affected

No product.

CWE

CWE-126

Buffer Over-read

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-787

Out-of-bounds Write

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