{"id":"CVE-2018-5243","aliases":["EUVD-2018-17025","GHSA-w8qw-x88f-f35r"],"status":"published","title":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be...","description":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01768,"percentile":0.78253,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2018-08-20T18:00:00Z","modified":"2026-06-17T01:59:54Z","products":[{"vendor":"symantec","product":"encryption_management_server"},{"vendor":"symantec corporation","product":"symantec encryption management server (sems)"}],"references":[{"url":"https://support.symantec.com/en_US/article.SYMSA1458.html","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1041527","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/105062","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5243"},{"url":"https://github.com/advisories/GHSA-w8qw-x88f-f35r"}],"sources":{"cve":[{"id":"CVE-2018-5243","description":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.","status":"published","published":"2018-08-20T18:00:00Z","modified":"2024-09-16T17:24:18.09Z","updated_at":"2026-11-02T14:35:00.948726Z"}],"euvd":[{"id":"EUVD-2018-17025","description":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.","status":"published","published":"2018-08-20T18:00:00Z","modified":"2024-09-16T17:24:18Z","updated_at":"2026-11-03T00:55:42.486621Z"}],"ghsa":[{"id":"GHSA-w8qw-x88f-f35r","title":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be...","description":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.","status":"published","published":"2022-05-14T02:21:24Z","modified":"2023-02-02T05:05:41Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:52:09.721765Z"}],"nvd":[{"id":"CVE-2018-5243","description":"The Symantec Encryption Management Server (SEMS) product, prior to version 3.4.2 MP1, may be susceptible to a denial of service (DoS) exploit. A DoS attack is a type of attack whereby the perpetrator attempts to make a particular machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a specific host within a network.","status":"published","published":"2018-08-20T18:29:00.23Z","modified":"2026-06-17T01:59:54.303Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:04:36.842579Z"}]}}