{"id":"CVE-2025-4276","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-4276","generatedAt":"2026-10-28T01:42:35.393Z","title":"UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.","description":"UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.","published":"2025-08-13T02:15:26.000Z","lastModified":"2026-06-17T09:32:55.000Z","status":"Deferred","sourceIdentifier":"8338d8cb-57f7-4252-abc0-96fd13e98d21","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-20"],"affected":[],"epss":{"score":0.00142,"percentile":0.03495,"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 (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.insyde.com/security-pledge/sa-2025005/","source":"8338d8cb-57f7-4252-abc0-96fd13e98d21"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-4276","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."}