CVE-2025-29946 Information disclosure in AMD EPYC™ 9005 Series Processors
Insufficient IOMMU flushing in AMD SEV firmware allows attackers to compromise guest memory confidentiality and integrity.
- 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-2025-29946?
CVE-2025-29946 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
Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.
Weakness: CWE-1301
Which versions are affected by CVE-2025-29946?
How do I fix CVE-2025-29946?
No fix has been published for CVE-2025-29946 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-29946 being exploited?
There is no known exploitation of CVE-2025-29946 in the wild and no public exploit code.
Sources
Also known as GHSA-gw24-f5j7-24m9, UBUNTU-CVE-2025-29946.