How severe is CVE-2024-3657?

CVE-2024-3657 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-2024-3657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-3657?

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-2024-3657 have an EU (EUVD) identifier?

Yes. CVE-2024-3657 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32233.

When was CVE-2024-3657 published?

CVE-2024-3657 was published on 2024-05-28 and last updated on 2026-06-17.

CVE-2024-3657

CVE-2024-3657 is a high-severity vulnerability 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-32233
Weakness: CWE-20
Published: 2024-05-28
Last modified: 2026-06-17

Description

A flaw was found in 389-ds-base. A specially-crafted LDAP query can potentially cause a failure on the directory server, leading to a denial of service

Frequently asked questions

What is CVE-2024-3657?: A flaw was found in 389-ds-base. A specially-crafted LDAP query can potentially cause a failure on the directory server, leading to a denial of service
How severe is CVE-2024-3657?: CVE-2024-3657 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-2024-3657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-3657?: 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-2024-3657 have an EU (EUVD) identifier?: Yes. CVE-2024-3657 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32233.
When was CVE-2024-3657 published?: CVE-2024-3657 was published on 2024-05-28 and last updated on 2026-06-17.

References

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