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Eclipse Paho MQTT C Client contains a heap use-after-free vulnerability in the synchronous MQTT client libpaho-mqtt3c when handling incoming PUBLISH messages with retry semantics. When a user-supplied messageArrived callback frees the received message and returns 0 indicating processing failure a...

Paho 1.3.15 Path Hijacking / Code Execution

Arbitrary code execution is possible in the MQTTVersion utility of Paho version 1.3.15 due to uncontrolled loading of shared libraries using non-absolute paths. The application invokes dlopen with relative library names and relies on the dynamic loader’s search path to resolve the target library...

Security Bulletin: Integer Overflow Leading to Packet Corruption in Eclipse Paho Go MQTT, affects watsonx.data

Summary Eclipse Paho Go MQTT version 1.5.0 contains an integer overflow issue when handling UTF-8 strings longer than 65535 bytes. Improper length conversion can cause malformed MQTT packets, potentially leading to data leakage between fields e.g., topic data leaking into message body. This can...

SUSE CVE-2025-10543

In Eclipse Paho Go MQTT v3.1 library paho.mqtt.golang versions =1.5.0 UTF-8 encoded strings, passed into the library, may be incorrectly encoded if their length exceeds 65535 bytes. This may lead to unexpected content in packets sent to the server for example, part of an MQTT topic may leak into...

EUVD-2021-28189

Malicious code in bioql PyPI...

CVE-2021-41036

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check remlen size in readpacket...

CVE-2021-41036

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check remlen size in readpacket...

CVE-2021-41036

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check remlen size in readpacket...

Code injection

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check remlen size in readpacket...

CVE-2021-41036

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check remlen size in readpacket...

CVE-2021-41036

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check remlen size in readpacket...

CVE-2019-11777

In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information...

CVE-2019-11777

In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information...

Security Bulletin: Vulnerabilities in OpenSSL affect IBM WebSphere MQ Advanced Message Security for IBM i, IBM WebSphere MQ Client for HP-NSS

Summary OpenSSL vulnerabilities were disclosed on March 19, 2015 by the OpenSSL Project. OpenSSL is used by IBM WebSphere MQ Advanced Message Security for the IBM i platform, IBM WebSphere MQ HP-NSS and IBM WebSphere MQ Paho MQTT clients. IBM WebSphere MQ Advanced Message Security for the IBM i...