CVE-2024-56161

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.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Affected: AMD AMD EPYC™ 7001 Series
Affected: AMD AMD EPYC™ 7002 Series
Affected: AMD AMD EPYC™ 7003 Series
Affected: AMD AMD EPYC™ 9004 Series
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3019.html
http://www.openwall.com/lists/oss-security/2025/02/04/1
http://www.openwall.com/lists/oss-security/2025/03/06/2
https://lists.debian.org/debian-lts-announce/2025/03/msg00024.html
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7033.html

Frequently Asked Questions

What is the severity of CVE-2024-56161?
CVE-2024-56161 has been scored as a high severity vulnerability.
How to fix CVE-2024-56161?
To fix CVE-2024-56161, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-56161 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-56161 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-56161?
CVE-2024-56161 affects AMD AMD EPYC™ 7001 Series, AMD AMD EPYC™ 7002 Series, AMD AMD EPYC™ 7003 Series, AMD AMD EPYC™ 9004 Series.
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