How severe is CVE-2024-42650?

CVE-2024-42650 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-2024-42650 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-42650?

CVE-2024-42650 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-42650?

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-2024-42650 have an EU (EUVD) identifier?

Yes. CVE-2024-42650 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54787.

When was CVE-2024-42650 published?

CVE-2024-42650 was published on 2025-07-15 and last updated on 2026-06-17.

CVE-2024-42650

CVE-2024-42650 is a high-severity vulnerability in Emqx Nanomq 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.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54787
Affected product: Emqx Nanomq
Published: 2025-07-15
Last modified: 2026-06-17

Description

NanoMQ 0.17.5 was discovered to contain a segmentation fault via the component /nanomq/pub_handler.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.

Frequently asked questions

What is CVE-2024-42650?: NanoMQ 0.17.5 was discovered to contain a segmentation fault via the component /nanomq/pub_handler.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.
How severe is CVE-2024-42650?: CVE-2024-42650 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-2024-42650 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-42650?: CVE-2024-42650 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-42650?: 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-2024-42650 have an EU (EUVD) identifier?: Yes. CVE-2024-42650 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54787.
When was CVE-2024-42650 published?: CVE-2024-42650 was published on 2025-07-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:emqx:nanomq:0.17.5:*:*:*:*:*:*:*

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