{"id":"CVE-2023-27471","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-27471","generatedAt":"2026-10-23T03:00:05.424Z","title":"Exploitation of this vulnerability could potentially lead to denial of service for the platform.","description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. UEFI implementations do not correctly protect and validate information contained in the 'MeSetup' UEFI variable. On some systems, this variable can be overwritten using operating system APIs. Exploitation of this vulnerability could potentially lead to denial of service for the platform.","published":"2023-08-18T19:15:12.000Z","lastModified":"2026-06-17T05:45:17.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["insyde/insydeh2o"],"epss":{"score":0.00171,"percentile":0.06137,"date":"2026-10-21","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.17%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.insyde.com/security-pledge/SA-2023036","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://www.insyde.com/security-pledge/SA-2023036","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-27471","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."}