MEDIUM

CVE-2024-39929

CVSS v3

5.4

MEDIUM

EPSS Score

63.5%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
7/4/2024

Frequently asked questions

What is 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.

Is CVE-2024-39929 actively exploited?

Active exploitation of CVE-2024-39929 has not been confirmed. The EPSS score is 63.5%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-39929?

CVE-2024-39929 has a CVSS v3 base score of 5.4 (MEDIUM severity).

Is CVE-2024-39929 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.