How severe is CVE-2024-4140?

CVE-2024-4140 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-4140 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-4140?

CVE-2024-4140 primarily affects Rjbs Email-mime. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-4140?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-4140 have an EU (EUVD) identifier?

Yes. CVE-2024-4140 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32700.

When was CVE-2024-4140 published?

CVE-2024-4140 was published on 2024-05-02 and last updated on 2026-06-17.

CVE-2024-4140

CVE-2024-4140 is a high-severity vulnerability in Rjbs Email-mime with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-32700
Weakness: CWE-770
Affected product: Rjbs Email-mime
Published: 2024-05-02
Last modified: 2026-06-17

Description

An excessive memory use issue (CWE-770) exists in Email-MIME, before version 1.954, which can cause denial of service when parsing multipart MIME messages. The patch set (from 2020 and 2024) limits excessive depth and the total number of parts.

Frequently asked questions

What is CVE-2024-4140?: An excessive memory use issue (CWE-770) exists in Email-MIME, before version 1.954, which can cause denial of service when parsing multipart MIME messages. The patch set (from 2020 and 2024) limits excessive depth and the total number of parts.
How severe is CVE-2024-4140?: CVE-2024-4140 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-4140 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-4140?: CVE-2024-4140 primarily affects Rjbs Email-mime. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-4140?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-4140 have an EU (EUVD) identifier?: Yes. CVE-2024-4140 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32700.
When was CVE-2024-4140 published?: CVE-2024-4140 was published on 2024-05-02 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:rjbs:email-mime:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

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