CVE-2025-59947

NanoMQ has Buffer Overflow

State: Published
Severity: 8.5 High
Published: Dec 15, 2025
Updated: Dec 15, 2025
Reserved: Sep 23, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H	GitHub_M

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
nanomqnanomq	< 0.24.4Affected

References

https://github.com/nanomq/nanomq/security/advisories/GHSA-98f4-cmg8-x7f3
https://github.com/nanomq/nanomq/issues/2110
https://github.com/nanomq/nanomq/commit/5f5581054bb92f102cf99251e8af2f43763d457b

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