{"id":"CVE-2018-15588","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-15588","generatedAt":"2026-10-28T20:12:50.514Z","title":"MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.","description":"MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.","published":"2019-02-11T17:29:00.000Z","lastModified":"2026-06-17T01:42:48.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-290"],"affected":["freron/mailmate"],"epss":{"score":0.02445,"percentile":0.84256,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2019/Apr/38","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2019/04/30/4","tags":["Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/RUB-NDS/Johnny-You-Are-Fired","source":"cve@mitre.org"},{"url":"https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf","source":"cve@mitre.org"},{"url":"https://updates.mailmate-app.com/release_notes","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2019/Apr/38","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2019/04/30/4","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/RUB-NDS/Johnny-You-Are-Fired","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://updates.mailmate-app.com/release_notes","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-15588","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."}