CVE-2025-48509 Other in AMD EPYC™ 7003 Series Processors
A local admin can cause misidentification of I/O memory in AMD EPYC processors, leading to loss of guest memory 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-2025-48509?
CVE-2025-48509 is a low-severity vulnerability in AMD EPYC™ 7003 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
Missing Checks in certain functions related to RMP initialization can allow a local admin privileged attacker to cause misidentification of I/O memory, potentially resulting in a loss of guest memory integrity
Weakness: CWE-665
Which versions are affected by CVE-2025-48509?
How do I fix CVE-2025-48509?
No fix has been published for CVE-2025-48509 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-48509 being exploited?
There is no known exploitation of CVE-2025-48509 in the wild and no public exploit code.
Sources
Also known as GHSA-c57w-56qm-8jw9, UBUNTU-CVE-2025-48509.