CVE-2026-36590 - Vulnerability Details - OpenCVE

An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nni_qos_db_set function in broker_tcp.c component

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00289.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/MoXie25/NanoMQ-Memory-Leak-Research.git
https://github.com/MoXie25/NanoMQ-Memory-Leak-Research/blob/main/README.md

History

Thu, 16 Jul 2026 19:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-400 CWE-772
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 15 Jul 2026 22:15:00 +0000

Type	Values Removed	Values Added
Description		An issue in EMQ NanoMQ v.0.24.9 allows a remote attacker to cause a denial of service via the nni_qos_db_set function in broker_tcp.c component
References		https://github.com/MoXie25/NanoMQ-Memory-Leak-Research.git https://github.com/MoXie25/NanoMQ-Memory-Leak-Research/blob/main/README.md

Projects

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MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-07-15T00:00:00.000Z

Updated: 2026-07-16T19:00:21.614Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-36590

Vulnrichment

Updated: 2026-07-16T18:55:36.844Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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