nanomq up to 0.24.3 Sub Info List use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in nanomq up to 0.24.3. The impacted element is an unknown function of the component Sub Info List Handler. Executing a manipulation can lead to use after free. This vulnerability appears as CVE-2025-59946. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in nanomq up to 0.24.3. It has been declared as critical. This vulnerability affects an unknown part of the component Sub Info List Handler. 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 confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-59946 since 09/23/2025. The exploitation appears to be difficult. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.24.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-205461). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: nanomq 0.24.4

Timelineinfo

09/23/2025 CVE reserved
12/27/2025 +95 days Advisory disclosed
12/27/2025 +0 days VulDB entry created
12/27/2025 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 1863
Status: Confirmed

CVE: CVE-2025-59946 (🔒)
GCVE (CVE): GCVE-0-2025-59946
GCVE (VulDB): GCVE-100-338488
EUVD: 🔒

Entryinfo

Created: 12/27/2025 09:38
Updated: 12/27/2025 10:56
Changes: 12/27/2025 09:38 (64), 12/27/2025 10:56 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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