DEBIAN-CVE-2026-44248

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the MQTT 5 header Properties section is parsed and buffered before any message size limit is applied. Specifically, in MqttDecoder, the decodeVariableHeader method is called before the...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the lack of size limits applied to the Properties section during the decoding process. An attacker can cause excessive CPU and memory consumption by sending MQTT messages with...

Credential Exposure

Overview github.com/nats-io/nats-server/v2/server is an A simple, secure and performant communications system for digital systems, services and devices. Affected versions of this package are vulnerable to Credential Exposure through the MQTT authentication processing in...

Man-In-The-Middle (MITM) Attack

MQTT is vulnerable to a Man-in-the-Middle MITM attack. The vulnerability is due to missing hostname verification by default, which allows an attacker to intercept and manipulate communication between clients and servers...

CVE-2025-66217 AIS-catcher Integer Underflow in MQTT Packet Parsing leading to Heap Buffer Overflow

AIS-catcher is a multi-platform AIS receiver. Prior to version 0.64, an integer underflow vulnerability exists in the MQTT parsing logic of AIS-catcher. This vulnerability allows an attacker to trigger a massive Heap Buffer Overflow by sending a malformed MQTT packet with a manipulated Topic Leng...

GHSA-9C5Q-W6GR-FXCQ MQTT does not validate hostnames

A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle MITM attack...

EUVD-2025-32583

Components of the YoSmart YoLink ecosystem through 2025-10-02 leverage unencrypted MQTT to communicate over the internet. An attacker with the ability to monitor network traffic could therefore obtain sensitive information or tamper with the traffic to control affected devices. This affects YoLin...

Sungrow iSolarCloud 安全漏洞

Sungrow iSolarCloud Sunshine Cloud is a software for monitoring and managing PV power plants from China's Sunny Power Sungrow. A security vulnerability exists in Sungrow iSolarCloud, which stems from an under-restricted MQTT service that could result in subscribing to arbitrary topics and...

SUSE CVE-2020-13849

The MQTT protocol 3.1.1 requires a server to set a timeout value of 1.5 times the Keep-Alive value specified by a client, which allows remote attackers to cause a denial of service loss of the ability to establish new connections, as demonstrated by SlowITe...

The vulnerability of InHand Networks InRouter 302 and InRouter 615 microprogrammed software lies in the use of an unencrypted data transmission channel by default. This allows attackers to gain unauthorized access to protected information or execute arbitrary commands.

The vulnerability of InHand Networks InRouter 302 and InRouter 615 microprogrammed software lies in the use of an unencrypted data transmission channel by default. Exploiting this vulnerability could allow a malicious actor to gain unauthorized access to protected information or execute arbitrary...

Servisnet Tessa MQTT Credential Disclosure

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'metasploit/framework/credentialcollection' require 'metasploit/framework/loginscanner/mqtt' class MetasploitModule 'Servisnet Tessa - MQTT Credentials Dump...

DEBIAN-CVE-2019-5432

A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module versions 3.5.1, 4.0.0 - 4.1.3, 5.0.0 - 5.6.1, 6.0.0 - 6.1.2 for decoding...

MQTT Denial of Service Vulnerability

MQTT is an open source MQTT protocol client for node.js and browsers written in JavaScript . A denial of service vulnerability exists in MQTT versions prior to 3.4.6 and 4.0.x prior to 4.0.5. An attacker can exploit this vulnerability to cause an application crash with the help of specially craft...

ALPINE-CVE-2017-7651

In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol...