Vulnerability Details CVE-2019-16754
RIOT 2019.07 contains a NULL pointer dereference in the MQTT-SN implementation (asymcute), potentially allowing an attacker to crash a network node running RIOT. This requires spoofing an MQTT server response. To do so, the attacker needs to know the MQTT MsgID of a pending MQTT protocol message and the ephemeral port used by RIOT's MQTT implementation. Additionally, the server IP address is required for spoofing the packet.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 55.8%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0