{"id":"CVE-2018-12239","aliases":["EUVD-2018-4217","GHSA-chxg-x965-g9w9"],"status":"published","title":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2;...","description":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2; Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to NIS-22.15.1.8 \u0026 SEP-12.1.7454.7000; and Symantec Endpoint Protection Cloud (SEP Cloud) prior to 22.15.1 may be susceptible to an AV bypass issue, which is a type of exploit that works to circumvent one of the virus detection engines to avoid a specific type of virus protection. One of the antivirus engines depends on a signature pattern from a database to identify malicious files and viruses; the antivirus bypass exploit looks to alter the file being scanned so it is not detected.","severity":{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00517,"percentile":0.4427,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2018-11-29T14:00:00Z","modified":"2026-06-17T01:37:24Z","products":[{"vendor":"symantec","product":"endpoint_protection"},{"vendor":"symantec","product":"endpoint_protection_cloud"},{"vendor":"symantec","product":"norton_antivirus"},{"vendor":"symantec corporation","product":"norton; symantec endpoint protection (sep); symantec endpoint protection small business edition (sep sbe); symantec endpoint protection cloud (sep cloud)"}],"references":[{"url":"http://www.securityfocus.com/bid/105918","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://support.symantec.com/content/unifiedweb/en_US/article.SYMSA1468.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-12239"},{"url":"https://github.com/advisories/GHSA-chxg-x965-g9w9"}],"sources":{"cve":[{"id":"CVE-2018-12239","description":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2; Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to NIS-22.15.1.8 \u0026 SEP-12.1.7454.7000; and Symantec Endpoint Protection Cloud (SEP Cloud) prior to 22.15.1 may be susceptible to an AV bypass issue, which is a type of exploit that works to circumvent one of the virus detection engines to avoid a specific type of virus protection. One of the antivirus engines depends on a signature pattern from a database to identify malicious files and viruses; the antivirus bypass exploit looks to alter the file being scanned so it is not detected.","status":"published","published":"2018-11-29T14:00:00Z","modified":"2024-08-05T08:30:59.652Z","updated_at":"2026-11-02T14:35:06.679212Z"}],"euvd":[{"id":"EUVD-2018-4217","description":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2; Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to NIS-22.15.1.8 \u0026 SEP-12.1.7454.7000; and Symantec Endpoint Protection Cloud (SEP Cloud) prior to 22.15.1 may be susceptible to an AV bypass issue, which is a type of exploit that works to circumvent one of the virus detection engines to avoid a specific type of virus protection. One of the antivirus engines depends on a signature pattern from a database to identify malicious files and viruses; the antivirus bypass exploit looks to alter the file being scanned so it is not detected.","status":"published","published":"2018-11-29T14:00:00Z","modified":"2024-08-05T08:30:59Z","updated_at":"2026-11-03T02:39:53.14558Z"}],"ghsa":[{"id":"GHSA-chxg-x965-g9w9","title":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2;...","description":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2; Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to NIS-22.15.1.8 \u0026 SEP-12.1.7454.7000; and Symantec Endpoint Protection Cloud (SEP Cloud) prior to 22.15.1 may be susceptible to an AV bypass issue, which is a type of exploit that works to circumvent one of the virus detection engines to avoid a specific type of virus protection. One of the antivirus engines depends on a signature pattern from a database to identify malicious files and viruses; the antivirus bypass exploit looks to alter the file being scanned so it is not detected.","status":"published","published":"2022-05-13T01:49:32Z","modified":"2023-02-02T05:01:45Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T14:51:15.131458Z"}],"nvd":[{"id":"CVE-2018-12239","description":"Norton prior to 22.15; Symantec Endpoint Protection (SEP) prior to 12.1.7454.7000 \u0026 14.2; Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to NIS-22.15.1.8 \u0026 SEP-12.1.7454.7000; and Symantec Endpoint Protection Cloud (SEP Cloud) prior to 22.15.1 may be susceptible to an AV bypass issue, which is a type of exploit that works to circumvent one of the virus detection engines to avoid a specific type of virus protection. One of the antivirus engines depends on a signature pattern from a database to identify malicious files and viruses; the antivirus bypass exploit looks to alter the file being scanned so it is not detected.","status":"published","published":"2018-11-29T14:29:00.297Z","modified":"2026-06-17T01:37:24.403Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:04:48.987926Z"}]}}