CVE-2021-34431
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.1%
exploitation probability
1.1%top 35% of all CVEs
observed exploitation
nono source reports it
In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.
Affected products
The Eclipse Foundation · Eclipse Mosquitto