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.
[
{
"product": "Eclipse Mosquitto",
"vendor": "The Eclipse Foundation",
"versions": [
{
"status": "affected",
"version": "1.4.14"
}
]
}
]