CVE-2026-32134 — Null Pointer Dereference
CVE-2026-32134 — NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In versions 0.24.10 and below, when NanoMQ handles high-concurrency reconnect traffic using a reconnect-collision payload, the broker can crash due to a NULL pointer dereference during MQTT session resumption for
What This Means For You
- If your environment is affected by CWE-476, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-32134 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
1 rule · 6 SIEM formats1 detection rule auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-32134 - NanoMQ MQTT Broker Null Pointer Dereference DoS
title: CVE-2026-32134 - NanoMQ MQTT Broker Null Pointer Dereference DoS
id: scw-2026-05-19-ai-1
status: experimental
level: critical
description: |
Detects the execution of the NanoMQ broker executable, which is the target of the CVE-2026-32134 vulnerability. This rule aims to identify potential exploitation attempts that could lead to a Denial-of-Service condition via a NULL pointer dereference when handling high-concurrency reconnect traffic with a reconnect-collision payload.
author: SCW Feed Engine (AI-generated)
date: 2026-05-19
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-32134/
tags:
- attack.impact
- attack.t1499
logsource:
category: process_creation
detection:
selection:
Image|endswith:
- 'nanomq.exe'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-32134 | vulnerability | CVE-2026-32134 |
| CWE-476 | weakness | CWE-476 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 19, 2026 at 21:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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