CVE-2023-20581 Security feature bypass in AMD EPYC™ 9004 Processors

Low 2.5 Published Updated

Privileged attackers can bypass IOMMU RMP checks to compromise guest memory integrity on AMD EPYC processors.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-20581?

CVE-2023-20581 is a low-severity vulnerability in AMD EPYC™ 9004 Processors, published on 11 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper access control in the IOMMU may allow a privileged attacker to bypass RMP checks, potentially leading to a loss of guest memory integrity.

Weakness: CWE-1284

Which versions are affected by CVE-2023-20581?

How do I fix CVE-2023-20581?

No fix has been published for CVE-2023-20581 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-20581 being exploited?

There is no known exploitation of CVE-2023-20581 in the wild and no public exploit code.

Sources

Also known as GHSA-mp93-634q-pm27.

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