How severe is CVE-2024-42648?

CVE-2024-42648 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-2024-42648 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42648?

CVE-2024-42648 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-42648?

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

Does CVE-2024-42648 have an EU (EUVD) identifier?

Yes. CVE-2024-42648 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54784.

When was CVE-2024-42648 published?

CVE-2024-42648 was published on 2025-07-14 and last updated on 2026-06-17.

CVE-2024-42648

CVE-2024-42648 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54784
Weakness: CWE-787
Affected product: Emqx Nanomq
Published: 2025-07-14
Last modified: 2026-06-17

Description

NanoMQ v0.22.10 was discovered to contain a heap overflow which allows attackers to cause a Denial of Service (DoS) via a crafted CONNECT message.

Frequently asked questions

What is CVE-2024-42648?: NanoMQ v0.22.10 was discovered to contain a heap overflow which allows attackers to cause a Denial of Service (DoS) via a crafted CONNECT message.
How severe is CVE-2024-42648?: CVE-2024-42648 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-2024-42648 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42648?: CVE-2024-42648 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-42648?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-42648 have an EU (EUVD) identifier?: Yes. CVE-2024-42648 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54784.
When was CVE-2024-42648 published?: CVE-2024-42648 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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