{"id":"CVE-2018-12130","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-12130","generatedAt":"2026-10-28T23:57:32.479Z","title":"Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.","description":"Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf","published":"2019-05-30T16:29:01.000Z","lastModified":"2026-06-17T01:37:12.000Z","status":"Modified","sourceIdentifier":"secure@intel.com","cvss":{"version":"3.1","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["intel/microarchitectural fill buffer data sampling firmware","fedoraproject/fedora"],"epss":{"score":0.01553,"percentile":0.74993,"date":"2026-10-27","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 (1.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00014.html","source":"secure@intel.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00052.html","source":"secure@intel.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00053.html","source":"secure@intel.com"},{"url":"http://packetstormsecurity.com/files/155281/FreeBSD-Security-Advisory-FreeBSD-SA-19-26.mcu.html","source":"secure@intel.com"},{"url":"http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-003.txt","source":"secure@intel.com"},{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en","source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1455","source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:2553","source":"secure@intel.com"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf","source":"secure@intel.com"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-616472.pdf","source":"secure@intel.com"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10292","source":"secure@intel.com"},{"url":"https://lists.debian.org/debian-lts-announce/2019/06/msg00018.html","source":"secure@intel.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/","source":"secure@intel.com"},{"url":"https://seclists.org/bugtraq/2019/Jun/28","source":"secure@intel.com"},{"url":"https://seclists.org/bugtraq/2019/Jun/36","source":"secure@intel.com"},{"url":"https://seclists.org/bugtraq/2019/Nov/15","source":"secure@intel.com"},{"url":"https://seclists.org/bugtraq/2019/Nov/16","source":"secure@intel.com"},{"url":"https://seclists.org/bugtraq/2020/Jan/21","source":"secure@intel.com"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-19:26.mcu.asc","source":"secure@intel.com"},{"url":"https://security.gentoo.org/glsa/202003-56","source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3977-3/","source":"secure@intel.com"},{"url":"https://www.debian.org/security/2020/dsa-4602","source":"secure@intel.com"},{"url":"https://www.freebsd.org/security/advisories/FreeBSD-SA-19:07.mds.asc","source":"secure@intel.com"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html","tags":["Vendor Advisory"],"source":"secure@intel.com"},{"url":"https://www.synology.com/security/advisory/Synology_SA_19_24","source":"secure@intel.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00014.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00052.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00053.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/155281/FreeBSD-Security-Advisory-FreeBSD-SA-19-26.mcu.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-003.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190712-01-mds-en","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:1455","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:2553","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-616472.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10292","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/06/msg00018.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OH73SGTJ575OBCPSJFX6LX7KP2KZIEN4/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jun/28","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Jun/36","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Nov/15","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2019/Nov/16","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/bugtraq/2020/Jan/21","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-19:26.mcu.asc","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202003-56","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3977-3/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4602","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.freebsd.org/security/advisories/FreeBSD-SA-19:07.mds.asc","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00233.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.synology.com/security/advisory/Synology_SA_19_24","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-12130","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."}