CVE-2023-20591

CriticalCVSS 10.0/10Last modified Jun 17, 2026

Description

Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker to read or modify hypervisor memory, potentially resulting in loss of confidentiality, integrity, and availability.

Metrics

CVSS 3.1 10.0/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-665

Affected software

No affected versions have been published.

Timeline

Published: Aug 13, 2024
Last modified: Jun 17, 2026
NVD status: Modified

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