CVE-2025-0033 Privilege escalation in AMD EPYC™ 7003 Series Processors (formerly codenamed "Milan")

Medium 6.0 Published Updated

An admin-privileged attacker can compromise SEV-SNP guest memory integrity by writing to the RMP during initialization 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-2025-0033?

CVE-2025-0033 is a medium-severity vulnerability in AMD EPYC™ 7003 Series Processors (formerly codenamed "Milan"), published on 14 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper access control within AMD SEV-SNP could allow an admin privileged attacker to write to the RMP during SNP initialization, potentially resulting in a loss of SEV-SNP guest memory integrity.

Weakness: CWE-284

Which versions are affected by CVE-2025-0033?

How do I fix CVE-2025-0033?

No fix has been published for CVE-2025-0033 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-0033 being exploited?

There is no known exploitation of CVE-2025-0033 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2025-0033, GHSA-9mfq-5f97-7wjc, UBUNTU-CVE-2025-0033.

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