{"id":"CVE-2018-3646","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-3646","generatedAt":"2026-10-28T21:26:45.589Z","title":"Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault…","description":"Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.","published":"2018-08-14T19:29:01.000Z","lastModified":"2026-06-17T01:57:37.000Z","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","intel/xeon"],"epss":{"score":0.08101,"percentile":0.94793,"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 (8.10%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://support.lenovo.com/us/en/solutions/LEN-24163","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"http://www.securityfocus.com/bid/105080","tags":["Third Party Advisory","VDB Entry"],"source":"secure@intel.com"},{"url":"http://www.securitytracker.com/id/1041451","tags":["Third Party Advisory","VDB Entry"],"source":"secure@intel.com"},{"url":"http://www.securitytracker.com/id/1042004","source":"secure@intel.com"},{"url":"http://www.vmware.com/security/advisories/VMSA-2018-0020.html","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"http://xenbits.xen.org/xsa/advisory-273.html","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2384","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2387","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2388","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2389","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2390","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2391","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2392","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2393","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2394","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2395","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2396","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2402","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2403","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2404","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2602","source":"secure@intel.com"},{"url":"https://access.redhat.com/errata/RHSA-2018:2603","source":"secure@intel.com"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-254686.pdf","source":"secure@intel.com"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf","source":"secure@intel.com"},{"url":"https://foreshadowattack.eu/","tags":["Technical Description","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","source":"secure@intel.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/08/msg00029.html","source":"secure@intel.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html","source":"secure@intel.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4UWGORQWCENCIF2BHWUEF2ODBV75QS2/","source":"secure@intel.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XRFKQWYV2H4BV75CUNGCGE5TNVQCLBGZ/","source":"secure@intel.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180018","source":"secure@intel.com"},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0010","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:09.l1tf.asc","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://security.gentoo.org/glsa/201810-06","source":"secure@intel.com"},{"url":"https://security.netapp.com/advisory/ntap-20180815-0001/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://software.intel.com/security-software-guidance/software-guidance/l1-terminal-fault","tags":["Mitigation","Vendor Advisory"],"source":"secure@intel.com"},{"url":"https://support.f5.com/csp/article/K31300402","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03874en_us","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180814-cpusidechannel","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3740-1/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3740-2/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3741-1/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3741-2/","source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3742-1/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3742-2/","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3756-1/","source":"secure@intel.com"},{"url":"https://usn.ubuntu.com/3823-1/","source":"secure@intel.com"},{"url":"https://www.debian.org/security/2018/dsa-4274","source":"secure@intel.com"},{"url":"https://www.debian.org/security/2018/dsa-4279","source":"secure@intel.com"},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00161.html","tags":["Vendor Advisory"],"source":"secure@intel.com"},{"url":"https://www.kb.cert.org/vuls/id/982149","source":"secure@intel.com"},{"url":"https://www.oracle.com/security-alerts/cpujul2020.html","source":"secure@intel.com"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html","source":"secure@intel.com"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html","source":"secure@intel.com"},{"url":"https://www.synology.com/support/security/Synology_SA_18_45","tags":["Third Party Advisory"],"source":"secure@intel.com"},{"url":"http://support.lenovo.com/us/en/solutions/LEN-24163","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/105080","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1041451","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-3646","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."}