NanoMQ up to 0.24.3 PUBLISH packet buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in NanoMQ up to 0.24.3. Affected by this vulnerability is an unknown functionality of the component PUBLISH packet Handler. Such manipulation leads to buffer overflow. This vulnerability is uniquely identified as CVE-2025-59947. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in NanoMQ up to 0.24.3. Affected by this issue is an unknown functionality of the component PUBLISH packet Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-59947 since 09/23/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 0.24.4 eliminates this vulnerability.

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Productinfo

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Version

Website

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: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.0
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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
12/15/2025 +83 days Advisory disclosed
12/15/2025 +0 days VulDB entry created
01/31/2026 +47 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-59947 (🔒)
GCVE (CVE): GCVE-0-2025-59947
GCVE (VulDB): GCVE-100-336512

Entryinfo

Created: 12/15/2025 21:35
Updated: 01/31/2026 02:33
Changes: 12/15/2025 21:35 (66), 01/31/2026 02:33 (11)
Complete: 🔍
Cache ID: 216::103

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