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4 vulnerabilities by nanomq
CVE-2025-66023 (GCVE-0-2025-66023)
Vulnerability from cvelistv5 – Published: 2026-01-01 15:11 – Updated: 2026-01-01 15:11
VLAI?
Title
NanoMQ has Use-After-Free of malformed bridging message
Summary
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Versions prior to 0.24.5 have a Heap-Use-After-Free (UAF) vulnerability within the MQTT bridge client component (implemented via the underlying NanoNNG library). The vulnerability is triggered when NanoMQ acts as a bridge connecting to a remote MQTT broker. A malicious remote broker can trigger a crash (Denial of Service) or potential memory corruption by accepting the connection and immediately sending a malformed packet sequence. Version 0.34.5 contains a patch. The patch enforces stricter protocol adherence in the MQTT client SDK embedded in NanoMQ. Specifically, it ensures that CONNACK is always the first packet processed in the line. This prevents the state confusion that led to the Heap-Use-After-Free (UAF) when a malicious server sent a malformed packet sequence immediately after connection establishment. As a workaround, validate the remote broker before bridging.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2025-59946 (GCVE-0-2025-59946)
Vulnerability from cvelistv5 – Published: 2025-12-27 00:40 – Updated: 2025-12-29 15:54
VLAI?
Title
NanoMQ has a Use After Free vulnerability via sub info list
Summary
NanoMQ MQTT Broker (NanoMQ) is an Edge Messaging Platform. Prior to version 0.24.2, there is a classical data racing issue about sub info list which could result in heap use after free crash. This issue has been patched in version 0.24.2.
Severity ?
7.5 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
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CVE-2025-59947 (GCVE-0-2025-59947)
Vulnerability from cvelistv5 – Published: 2025-12-15 20:19 – Updated: 2025-12-15 20:58
VLAI?
Title
NanoMQ has Buffer Overflow
Summary
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 ?
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2025-65953 (GCVE-0-2025-65953)
Vulnerability from cvelistv5 – Published: 2025-11-25 23:13 – Updated: 2025-11-26 16:10
VLAI?
Title
NanoMQ UAF of retain message due to invalid MQTTV5 properties
Summary
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to version 0.22.5, a Heap-Use-After-Free (UAF) vulnerability exists in the TCP transport component of NanoMQ, which relies on the underlying NanoNNG library (specifically in src/sp/transport/mqtt/broker_tcp.c). The vulnerability is due to improper resource management and premature cleanup of message and pipe structures under specific malformed MQTTV5 retain message traffic conditions. This issue has been patched in version 0.22.5.
Severity ?
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||
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