{"id":"CVE-2018-3620","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-3620","generatedAt":"2026-10-29T01:49:12.481Z","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 via a terminal page fault and a side-channel…","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 via a terminal page fault and a side-channel analysis.","published":"2018-08-14T19:29:01.000Z","lastModified":"2026-06-17T01:57:34.000Z","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-203"],"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":0.05577,"percentile":0.92836,"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 (5.58%). 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.vmware.com/security/advisories/VMSA-2018-0021.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-2018-0009","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/K95275140","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/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.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"},{"url":"http://www.vmware.com/security/advisories/VMSA-2018-0021.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://xenbits.xen.org/xsa/advisory-273.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:2384","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-3620","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."}