CVE-2023-20582 Security feature bypass in AMD EPYC™ 9004 Processors
A privileged attacker can bypass SEV-SNP memory integrity checks via IOMMU faults, compromising 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-2023-20582?
CVE-2023-20582 is a medium-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 handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry (PTE) faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity.
Weakness: CWE-1284
Which versions are affected by CVE-2023-20582?
How do I fix CVE-2023-20582?
No fix has been published for CVE-2023-20582 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-20582 being exploited?
There is no known exploitation of CVE-2023-20582 in the wild and no public exploit code.
Sources
Also known as GHSA-7vx3-5mq4-mccg.