CVE-2024-36347 Security feature bypass in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
Local administrators can bypass signature verification to load malicious microcode, compromising CPU integrity and SMM execution.
- 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-2024-36347?
CVE-2024-36347 is a medium-severity vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, published on 27 Jun 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 microcode, potentially resulting in loss of integrity of x86 instruction execution, loss of confidentiality and integrity of data in x86 CPU privileged context and compromise of SMM execution environment.
Weakness: CWE-347
Which versions are affected by CVE-2024-36347?
How do I fix CVE-2024-36347?
Apply the vendor's patch.
Is CVE-2024-36347 being exploited?
There is no known exploitation of CVE-2024-36347 in the wild and no public exploit code.
Sources
Also known as GHSA-fxg4-qp5q-79p3, MGASA-2025-0258, ROOT-OS-UBUNTU-2204-CVE-2024-36347, ROOT-OS-UBUNTU-2404-CVE-2024-36347, UBUNTU-CVE-2024-36347.