CVE-2025-59947 — CRITICAL (9.0)

Q: How severe is CVE-2025-59947?

CVE-2025-59947 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2025-59947?

Check the references section above for vendor advisories and patch information. Affected products include: Emqx Nanomq.

Vulnerability Description

NanoMQ is a messaging broker/bus for IoT Edge & SDV. Versions prior to 0.24.4 have a buffer overflow case while the PUBLISH packets trigger both shared subscription and vanila subscription. This is fixed in version 0.24.4. As a workaround, disable shared subscription.

CVSS Score

9.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Emqx	Nanomq	< 0.24.4

Related Weaknesses (CWE)

CWE-120

References

https://github.com/nanomq/nanomq/commit/5f5581054bb92f102cf99251e8af2f43763d457bPatch
https://github.com/nanomq/nanomq/issues/2110Issue TrackingPatch
https://github.com/nanomq/nanomq/security/advisories/GHSA-98f4-cmg8-x7f3Vendor Advisory

FAQ

What is CVE-2025-59947?

CVE-2025-59947 is a vulnerability with a CVSS score of 9.0 (CRITICAL). NanoMQ is a messaging broker/bus for IoT Edge & SDV. Versions prior to 0.24.4 have a buffer overflow case while the PUBLISH packets trigger both shared subscription and vanila subscription. This is fi...

How severe is CVE-2025-59947?

CVE-2025-59947 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2025-59947?

Check the references section above for vendor advisories and patch information. Affected products include: Emqx Nanomq.