CVE-2024-39929
25Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 41%
exploitation probability
41%top 1% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected products
n/a · n/aReferences
https://bugs.exim.org/show_bug.cgi?id=3099#c4https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7bhttps://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3https://www.rfc-editor.org/rfc/rfc2231.txt