CVE-2023-31364 - Vulnerability Details - OpenCVE

Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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References

Link	Providers
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html

History

Thu, 26 Feb 2026 21:15:00 +0000

Type	Values Removed	Values Added
Description		Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.
Weaknesses		CWE-119
References		https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html
Metrics		cvssV4_0 `{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H'}`

MITRE

Status: PUBLISHED

Assigner: AMD

Published: 2026-02-26T20:33:28.086Z

Updated: 2026-02-26T20:33:28.086Z

Reserved: 2023-04-27T15:25:41.429Z

Link: CVE-2023-31364

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-02-26T21:28:47.037

Modified: 2026-02-26T21:28:47.037

Link: CVE-2023-31364

Redhat

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OpenCVE Enrichment

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