CVE-2024-39929

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 v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://bugs.exim.org/show_bug.cgi?id=3099#c4	Exploit Vendor Advisory
https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b	Patch
https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357	Patch
https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3	Release Notes
https://www.rfc-editor.org/rfc/rfc2231.txt	Not Applicable
https://bugs.exim.org/show_bug.cgi?id=3099#c4	Exploit Vendor Advisory
https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b	Patch
https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357	Patch
https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3	Release Notes
https://www.rfc-editor.org/rfc/rfc2231.txt	Not Applicable

Configurations

Configuration 1 (hide)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-07-04 15:15

Updated : 2025-07-10 22:15

NVD link : CVE-2024-39929

Mitre link : CVE-2024-39929

CVE.ORG link : CVE-2024-39929

JSON object : View

Products Affected

exim

exim

CWE

CWE-116

Improper Encoding or Escaping of Output

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