{"id":"CVE-2024-39929","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-39929","generatedAt":"2026-11-04T21:48:30.384Z","title":"Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.","description":"Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.","published":"2024-07-04T15:15:10.000Z","lastModified":"2026-06-17T07:43:03.000Z","status":"Analyzed","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"cwe":["CWE-116"],"affected":["exim/exim"],"epss":{"score":0.41491,"percentile":0.9868,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 41.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://bugs.exim.org/show_bug.cgi?id=3099#c4","tags":["Exploit","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357","tags":["Patch"],"source":"cve@mitre.org"},{"url":"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3","tags":["Release Notes"],"source":"cve@mitre.org"},{"url":"https://www.rfc-editor.org/rfc/rfc2231.txt","tags":["Not Applicable"],"source":"cve@mitre.org"},{"url":"https://bugs.exim.org/show_bug.cgi?id=3099#c4","tags":["Exploit","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3","tags":["Release Notes"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.rfc-editor.org/rfc/rfc2231.txt","tags":["Not Applicable"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-39929","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."}