What is CVE-2019-6241?

CVE-2019-6241 is a high-severity vulnerability in Bevywise Mqttroute. CVSS score: 7.5/10. Published 2019-06-10.

How severe is CVE-2019-6241?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Bevywise Mqttroute

CVE-2019-6241

In Bevywise MQTTRoute 1.1 build 1018-002, a connect packet combined with a malformed unsubscribe request packet can be used to cause a Denial of Service attack against the broker.

Published 2019-06-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.4th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.014 · change: +0.003

Affected products

Bevywise Mqttroute — versions 1.1

References

github.com/insi2304/MQTTRoute-fuzz/blob/master/MQTT_Route_crash.png (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-6241?: CVE-2019-6241 is a high-severity vulnerability in Bevywise Mqttroute. CVSS score: 7.5/10. Published 2019-06-10.
How severe is CVE-2019-6241?: High severity. CVSS v3 base score is 7.5 out of 10.