What’s Vulnerable › Vulnerabilities

CVE-2024-56161

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-03 · updated 2026-06-17
• Weakness: CWE-347

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.

Affected products

• AMD EPYC™ 7001 Series: all versions
• AMD EPYC™ 7002 Series: all versions
• AMD EPYC™ 7003 Series: all versions
• AMD EPYC™ 9004 Series: all versions

References

• 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

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