Unrated severityNVD Advisory· Published Jul 4, 2024· Updated Mar 18, 2025

CVE-2024-39929

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Exim/Eximcpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <= 4.97.1
osv-coords3 versions
pkg:rpm/opensuse/exim&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/exim&distro=openSUSE%20Tumbleweed pkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP5
< 4.97.1-bp155.5.12.1+ 2 more
- (no CPE)range: < 4.97.1-bp155.5.12.1
- (no CPE)range: < 4.98-1.1
- (no CPE)range: < 4.97.1-bp155.5.12.1

Patches

Vulnerability mechanics

References

bugs.exim.org/show_bug.cgimitre
git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7bmitre
git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357mitre
github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3mitre
www.rfc-editor.org/rfc/rfc2231.txtmitre

News mentions

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epss	0.033
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ransomware	0.000