{"id":"CVE-2024-56161","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-56161","generatedAt":"2026-10-28T03:29:00.749Z","title":"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…","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.","published":"2025-02-03T18:15:37.000Z","lastModified":"2026-06-17T08:11:46.000Z","status":"Deferred","sourceIdentifier":"psirt@amd.com","cvss":{"version":"3.1","score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N"},"cwe":["CWE-347"],"affected":[],"epss":{"score":0.00533,"percentile":0.44741,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3019.html","source":"psirt@amd.com"},{"url":"http://www.openwall.com/lists/oss-security/2025/02/04/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2025/03/06/2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00024.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7033.html","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-56161","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}