Is CVE-2024-39929 in the CISA KEV catalog?

No. CVE-2024-39929 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-39929?

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

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

CVE-2024-39929 has an EPSS score of 41.23% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2024-39929

MEDIUMEPSS 98th pctl

5.4

CVSS v3

NVD

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.

CWE-116

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploit Intelligence

41.23%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-07-10.