CVE-2024-21953 Other in AMD EPYC™ 8004 Series Processors
A malicious hypervisor can reconfigure IOMMU registers to compromise guest data 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-2024-21953?
CVE-2024-21953 is a medium-severity vulnerability in AMD EPYC™ 8004 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 input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.
Weakness: CWE-1284
Which versions are affected by CVE-2024-21953?
How do I fix CVE-2024-21953?
No fix has been published for CVE-2024-21953 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-21953 being exploited?
There is no known exploitation of CVE-2024-21953 in the wild and no public exploit code.
Sources
Also known as GHSA-846p-qcjx-5365, UBUNTU-CVE-2024-21953.