{"id":"CVE-2018-3665","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-3665","generatedAt":"2026-10-28T21:18:35.139Z","title":"System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.","description":"System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.","published":"2018-06-21T20:29:00.000Z","lastModified":"2026-06-17T01:57:39.000Z","status":"Modified","sourceIdentifier":"secure@intel.com","cvss":{"version":"3.1","score":5.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["intel/core i3","intel/core i5","intel/core i7","intel/core m","intel/core m3","intel/core m5","intel/core m7","citrix/xenserver","canonical/ubuntu linux","debian/debian linux","freebsd/freebsd","redhat/enterprise linux","redhat/enterprise linux desktop","redhat/enterprise linux workstation"],"epss":{"score":0.00627,"percentile":0.49844,"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 (0.63%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/104460","tags":["Third Party Advisory","VDB Entry"],"source":"secure@intel.com"},{"url":"http://www.securitytracker.com/id/1041124","tags":["Third Party Advisory","VDB Entry"],"source":"secure@intel.com"},{"url":"http://www.securitytracker.com/id/1041125","tags":["Third Party Advisory","VDB Entry"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:1852","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:1944","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2164","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2165","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1170","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:1190","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://nvidia.custhelp.com/app/answers/detail/a_id/4787","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:07.lazyfpu.asc","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://security.netapp.com/advisory/ntap-20181016-0001/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://security.paloaltonetworks.com/CVE-2018-3665","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://support.citrix.com/article/CTX235745","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3696-1/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3696-2/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3698-1/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3698-2/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://www.debian.org/security/2018/dsa-4232","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00145.html","tags":["Vendor Advisory"],"source":"secure@intel.com"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://www.synology.com/support/security/Synology_SA_18_31","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"http://www.securityfocus.com/bid/104460","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1041124","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1041125","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:1852","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:1944","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2164","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2165","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:1170","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2019:1190","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://nvidia.custhelp.com/app/answers/detail/a_id/4787","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:07.lazyfpu.asc","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20181016-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.paloaltonetworks.com/CVE-2018-3665","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.citrix.com/article/CTX235745","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3696-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3696-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3698-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3698-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4232","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00145.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.synology.com/support/security/Synology_SA_18_31","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-3665","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."}