{"id":"CVE-2018-18366","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-18366","generatedAt":"2026-10-29T04:58:49.359Z","title":"Symantec Norton Security prior to 22.16.3, SEP (Windows client) prior to and including 12.1 RU6 MP9, and prior to 14.2 RU1, SEP SBE prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22, SEP-12.1.7484.7002 and SEP Cloud prior to 22.16.3 may be susceptible…","description":"Symantec Norton Security prior to 22.16.3, SEP (Windows client) prior to and including 12.1 RU6 MP9, and prior to 14.2 RU1, SEP SBE prior to Cloud Agent 3.00.31.2817, NIS-22.15.2.22, SEP-12.1.7484.7002 and SEP Cloud prior to 22.16.3 may be susceptible to a kernel memory disclosure, which is a type of issue where a specially crafted IRP request can cause the driver to return uninitialized memory.","published":"2019-04-25T20:29:02.000Z","lastModified":"2026-06-17T01:47:05.000Z","status":"Modified","sourceIdentifier":"secure@symantec.com","cvss":{"version":"3.0","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"cwe":["CWE-908"],"affected":["symantec/endpoint protection","symantec/endpoint protection cloud","symantec/endpoint protection cloud agent","symantec/norton security"],"epss":{"score":0.00386,"percentile":0.32566,"date":"2026-10-28","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 (0.39%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/107994","tags":["Third Party Advisory","VDB Entry"],"source":"secure@symantec.com"},{"url":"https://support.symantec.com/en_US/article.SYMSA1479.html","tags":["Vendor Advisory"],"source":"secure@symantec.com"},{"url":"http://www.securityfocus.com/bid/107994","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.symantec.com/en_US/article.SYMSA1479.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-18366","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."}