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CVE-2023-31364

HIGH
8.3
CVSS Score
Published: February 26, 2026 at 08:33 PM UTC
Updated: June 17, 2026 at 05:56 AM UTC
22 products affected across 1 vendorRyzen 5000 SeriesRyzen 3000 SeriesAthlon 3000 Series

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Severity
HIGH8.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.3HIGHAMD
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-119

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