VDB-333553 · CVE-2025-65953 · GHSA-r95p-wjm8-2qxr

NanoMQ up to 0.22.4 NanoNNG broker_tcp.c use after free

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3.0	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in NanoMQ up to 0.22.4 and classified as critical. Affected by this vulnerability is an unknown functionality of the file src/sp/transport/mqtt/broker_tcp.c of the component NanoNNG. This manipulation causes use after free. This vulnerability appears as CVE-2025-65953. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in NanoMQ up to 0.22.4 and classified as problematic. Affected by this vulnerability is an unknown part of the file src/sp/transport/mqtt/broker_tcp.c of the component NanoNNG. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-65953 since 11/18/2025. The exploitation appears to be difficult. The attack can be launched remotely. Technical details are known, but no exploit is available.

Upgrading to version 0.22.5 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

NanoMQ

Version

Website

Product: https://github.com/nanomq/nanomq/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: NanoMQ 0.22.5

Timelineinfo

11/18/2025 CVE reserved
11/26/2025 +8 days Advisory disclosed
11/26/2025 +0 days VulDB entry created
11/26/2025 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-r95p-wjm8-2qxr
Status: Confirmed

CVE: CVE-2025-65953 (🔒)
GCVE (CVE): GCVE-0-2025-65953
GCVE (VulDB): GCVE-100-333553

Entryinfo

Created: 11/26/2025 06:40
Changes: 11/26/2025 06:40 (68)
Complete: 🔍
Cache ID: 216::103