How severe is CVE-2024-31041?

CVE-2024-31041 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-2024-31041 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-2024-31041?

CVE-2024-31041 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-31041?

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-2024-31041 have an EU (EUVD) identifier?

Yes. CVE-2024-31041 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-28958.

When was CVE-2024-31041 published?

CVE-2024-31041 was published on 2024-04-17 and last updated on 2026-06-17.

CVE-2024-31041

CVE-2024-31041 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. The underlying weakness is classified as CWE-476.

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-2024-28958
Weakness: CWE-476
Affected product: Emqx Nanomq
Published: 2024-04-17
Last modified: 2026-06-17

Description

Null Pointer Dereference vulnerability in topic_filtern function in mqtt_parser.c in NanoMQ 0.21.7 allows attackers to cause a denial of service.

Frequently asked questions

What is CVE-2024-31041?: Null Pointer Dereference vulnerability in topic_filtern function in mqtt_parser.c in NanoMQ 0.21.7 allows attackers to cause a denial of service.
How severe is CVE-2024-31041?: CVE-2024-31041 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-2024-31041 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-2024-31041?: CVE-2024-31041 affects Emqx Nanomq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-31041?: 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-2024-31041 have an EU (EUVD) identifier?: Yes. CVE-2024-31041 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-28958.
When was CVE-2024-31041 published?: CVE-2024-31041 was published on 2024-04-17 and last updated on 2026-06-17.

References

https://github.com/nanomq/nanomq/issues/1723

Affected products (1)

cpe:2.3:a:emqx:nanomq:0.21.7:*:*:*:*:*:*:*

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