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CVE-2025-59947

Good to know:

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Date: December 15, 2025

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.

Severity Score

Related Resources (5)

https://github.com/nanomq/nanomq/security/advisories/GHSA-98f4-cmg8-x7f3
https://nvd.nist.gov/vuln/detail/CVE-2025-59947
https://github.com/nanomq/nanomq/commit/5f5581054bb92f102cf99251e8af2f43763d457b
https://github.com/nanomq/nanomq/issues/2110
https://www.mend.io/vulnerability-database/CVE-2025-59947

Severity Score

Weakness Type (CWE)

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-120

Top Fix

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Upgrade Version

Upgrade to version https://github.com/nanomq/nanomq.git - 0.24.4

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): HIGH
Availability (A): HIGH

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