CVE-2024-36347

A flaw was found in AMD processors. This flaw allows an attacker with system administration privileges to exploit an issue in the signature verification in the AMD CPU ROM microcode patch loader, allowing the load of malicious microcode. This issue could impact the integrity of x86 instruction execution, confidentiality, and data integrity in x86 CPU-privileged context and compromise the SMM execution environment.

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AMD believes this issue is caused by a weakness in the signature verification algorithm and the vulnerability could allow an administrator privileged attacker, the ability to load arbitrary CPU microcode patches. Malicious CPU microcode results 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.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.