CVE-2024-21944

DIMM SPD Metadata Validation Error Allows Guest Memory Overwrite

Published Jun 10, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Amd
Amd epyc 7003 Series Processors
Amd epyc 9004 Series Processors
Vendors & Products Amd
Amd epyc 7003 Series Processors
Amd epyc 9004 Series Processors
Type Values Removed Values Added
Title DIMM SPD Metadata Validation Error Allows Guest Memory Overwrite
Type Values Removed Values Added
Description Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity.
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
Jun 11, 2026, 1:28 PM
Reserved
Jan 3, 2024, 4:43 PM
Status
Awaiting Analysis
Published
Jun 10, 2026, 11:16 PM
Modified
Jul 23, 2026, 9:10 AM