CVE-2024-39929

PoC —

CVSS 3.1

5.4 medium

EPSS

41%p99

Published

Jul 4, 2024 (Jul 4, 2024)

Modified

Jun 17, 2026

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.

Vendors: exim
Products: exim
Weakness: CWE-116
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (41.2%)

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