CVE-2025-29948 Security feature bypass in AMD EPYC™ 9005 Series Processors

Medium 5.9 Published Updated

A malicious hypervisor can bypass SEV-SNP memory integrity protections in AMD EPYC firmware, compromising guest memory security.

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-2025-29948?

CVE-2025-29948 is a medium-severity vulnerability in AMD EPYC™ 9005 Series Processors, published on 10 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper access control in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to bypass RMP protections, potentially resulting in a loss of SEV-SNP guest memory integrity.

Weakness: CWE-1260

Which versions are affected by CVE-2025-29948?

How do I fix CVE-2025-29948?

No fix has been published for CVE-2025-29948 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-29948 being exploited?

There is no known exploitation of CVE-2025-29948 in the wild and no public exploit code.

Sources

Also known as GHSA-34ch-j427-vrm7, UBUNTU-CVE-2025-29948.

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