Description
Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.
Published: 2026-04-16
Score: 5.6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Thu, 16 Apr 2026 19:30:00 +0000

Type Values Removed Values Added
Description Insuffient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised HV to trigger an out of bounds condition without RMP checks resulting in a potential loss of confidential guest integrity. Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.

Thu, 16 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 16 Apr 2026 19:00:00 +0000

Type Values Removed Values Added
Description Insuffient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised HV to trigger an out of bounds condition without RMP checks resulting in a potential loss of confidential guest integrity.
Weaknesses CWE-788
References
Metrics cvssV4_0

{'score': 5.6, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMD

Published:

Updated: 2026-04-16T19:12:06.991Z

Reserved: 2022-10-27T18:53:39.759Z

Link: CVE-2023-20585

cve-icon Vulnrichment

Updated: 2026-04-16T18:58:11.213Z

cve-icon NVD

Status : Received

Published: 2026-04-16T19:16:31.430

Modified: 2026-04-16T20:16:34.290

Link: CVE-2023-20585

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses