How severe is CVE-2024-42649?

CVE-2024-42649 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-42649 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42649?

CVE-2024-42649 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-42649?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-42649 have an EU (EUVD) identifier?

Yes. CVE-2024-42649 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54785.

When was CVE-2024-42649 published?

CVE-2024-42649 was published on 2025-07-14 and last updated on 2026-06-17.

CVE-2024-42649

CVE-2024-42649 is a medium-severity vulnerability in Emqx Nanomq with a CVSS 3.x base score of 6.5. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54785
Weakness: CWE-401
Affected product: Emqx Nanomq
Published: 2025-07-14
Last modified: 2026-06-17

Description

NanoMQ v0.22.10 was discovered to contain a memory leak which allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.

Frequently asked questions

What is CVE-2024-42649?: NanoMQ v0.22.10 was discovered to contain a memory leak which allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.
How severe is CVE-2024-42649?: CVE-2024-42649 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-42649 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42649?: CVE-2024-42649 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-42649?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-42649 have an EU (EUVD) identifier?: Yes. CVE-2024-42649 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54785.
When was CVE-2024-42649 published?: CVE-2024-42649 was published on 2025-07-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:emqx:nanomq:0.22.10:*:*:*:*:*:*:*

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