Buffer overflow in Emqx Nanomq

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.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (26.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Emqx Nanomq — versions 0.22.10
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2024-42648?: CVE-2024-42648 is a medium-severity vulnerability in Emqx Nanomq, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2025-07-14.
How severe is CVE-2024-42648?: Medium severity. CVSS v3 base score is 6.5 out of 10.