CVE-2024-56161 Security feature bypass in AMD EPYC™ 7001 Series
Local administrators can bypass AMD SEV-SNP protections by loading malicious microcode, compromising confidential guest integrity and confidentiality.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-56161?
CVE-2024-56161 is a high-severity vulnerability in AMD EPYC™ 7001 Series, published on 3 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.
Weakness: CWE-347
Which versions are affected by CVE-2024-56161?
How do I fix CVE-2024-56161?
Apply the vendor's patch.
Is CVE-2024-56161 being exploited?
There is no known exploitation of CVE-2024-56161 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2024-56161, DLA-4098-1, MGASA-2025-0124, OESA-2025-1307, UBUNTU-CVE-2024-56161, USN-7560-1.