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Status published
Unknown
CVE-2023-46840
VT-d: Failure to quarantine devices in !HVM builds
Vulnerability Description
Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This issue was discovered by Teddy Astie of Vates
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Affected Vendor
Affected Software
Xen
Vulnerable Versions:
consult Xen advisory XSA-450
Timeline
Official Publish:
March 20th, 2024
Last Modified:
November 4th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.