{"id":"CVE-2015-9096","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-9096","generatedAt":"2026-10-27T20:53:30.605Z","title":"Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.","description":"Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.","published":"2017-06-12T20:29:00.000Z","lastModified":"2026-06-17T00:35:48.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-93"],"affected":["ruby-lang/ruby"],"epss":{"score":0.03687,"percentile":0.89616,"date":"2026-10-26","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 (3.69%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.mbsd.jp/Whitepaper/smtpi.pdf","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffee","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/rubysec/ruby-advisory-db/issues/215","tags":["Issue Tracking","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://hackerone.com/reports/137631","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2017/dsa-3966","source":"cve@mitre.org"},{"url":"http://www.mbsd.jp/Whitepaper/smtpi.pdf","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffee","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/rubysec/ruby-advisory-db/issues/215","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hackerone.com/reports/137631","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2017/dsa-3966","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-9096","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."}